Impedance compound muffler Resistive muffler for the silencing effect of high frequency noise significantly, poor low-frequency noise effects; and muffler on the contrary, the effect of low-frequency noise is good, high-frequency noise is poor. The actual air conditioning system noise frequency range is wide, both low-frequency noise, there are the high-frequency noise. So muffler to be effective over a wide frequency band, often resistive and muffler combination made impedance composite muffler. Muffler impedance composite muffler is determined by the role of mutation section of the inner tube and the inner and outer tube between the expansion chamber constituted. It low-frequency and intermediate-frequency noise from the muffler and effective action. Impedance composite muffler Resistive muffler is absorption by the resistive material, it has a good high-frequency muffling effect. Resistive absorption method is to use the framework, the density of ultra-fine glass wool felt 32㎏ / m3 and E-glass fiber cloth composition. First make the production framework, filled with fine glass wool felt, then outsourcing glass cloth, muffler production, installation paperback firm. When making muffler, first with sound absorbing sheet made into a sound absorptive sheet stapling group, while the transverse bulkhead with rivets and riveting good inner tube segments, each segment and then the inner tube and the sound absorbing piece set of fixed, muffler, then the outer tube and the crossbeam, at both ends of the outer tube and muffler cover, the inner cover and are fixed to the inner tube, and finally installed at both ends of the flange. 4, boiler muffler: Boiler muffler series is Li Machinery Co., Ltd. Lianyungang help optimize design, air conditioning muffler, the noise index, fan muffler, security, performance and service life is far better than similar products on the market, can better meet various boiler low, medium industry, high-pressure, high pressure, high pressure, sub-critical parameters, such as pressure vessels piping exhaust gas venting, boiler safety door, boiler release door, safety valves, and other equipment exhaust (gas) noise reduction requirements. The muffler system combines the most reasonable principles designed silencer. When the user is required to install, always muffler should reach 20 to 90 decibels. Is after the high temperature and pressure steam and low pressure steam in the muffler expansion through a step-down, and then into the second step-down body, through the large volume expansion down low or ultra-low-pressure steam is formed, and then discharged through a step-down in vitro Only a combination of multi-material composite structure acoustic sound barrier again muffler sound reduction cover back into the atmosphere. The type of muffler noise reduction equipment industry has a high safety factor, muffler large, small size, light weight and easy installation, and other advantages. Widely used for efficient muffler noise reduction of electric power, petroleum, chemical, metallurgy, municipal, textile, cement, environmental protection and other industries use. Muffler, Dingrui air conditioning, aluminum muffler by wucheng Dingrui Air Conditioning Equipment Co., Ltd. Muffler, Dingrui air conditioning, aluminum muffler is wucheng Dingrui Air Conditioning Equipment Co., Ltd. (www.wcdrkt.com) (www.wcdrkt.com) this year introduced a new upgrade, the above picture is for reference only, please call this page or Tel picture on to obtain the latest information, contact: Qiu East only.