DE-type rubber shock absorber applied to the cooling tower noise control

DE-type rubber shock absorber applied to the cooling tower noise control DE DE rubber shock absorber rubber shock absorber is made with steel inner wire down the middle of the cylindrical rubber composition, compressibility and elongation, has a simple structure, easy installation , oil, acid, anti-aging, temperature and other properties, are widely used in electronic equipment, instrumentation equipment cabinet, it can also be used for fans, pumps, chillers and so on. Since the complete separation of the upper and lower plate, without an additional annex to subtract off the sound bridge to pass, it is a very useful shock absorber, especially for electronic instruments. Item Model DHM × L rubber hardness 45 IRHD (daN / mm) rubber hardness 60HIRD (daN / mm) rubber hardness 70IRHD (daN / mm) Maximale statische Einfederung appropriate amount of compression (mm) 2015DE06 20 15 M6 7.9 14.8 20.5 3.0 2020DE06 20 20 M6 4.6 8.6 11.8 4.0 2025DE06 20 25 M6 3.2 3.2 3.2 5.0 2030DE06 20 30 M6 2.2 3.8 5.4 6.0 2515DE06 25 15 M6 15.7 30.0 42.0 3.0 2520DE06 25 20 M6 10.5 19.4 25.6 4.0 2525DE06 25 25 M8 6.2 11.9 16.2 5.0 2530DE08 25 30 M8 4.8 8.9 11.5 6.0 3020DE08 30 20 M8 12.6 24.0 32.0 4.0 3030DE08 30 30 M8 6.1 11.5 15.4 6.0 3040DE08 30 40 M8 4.1 8.1 10.6 8.0 4020DE08 40 20 M8 26.7 50.8 73.3 4.0 4028DE08 40 28 M8 15.4 28.3 38.8 5.6 4028DE08 40 28 M10 15.4 28.3 38.8 5.6 4030DE08 40 30 M8 13.5 25.0 35.0 6.0 4030DE08 40 30 M10 13.5 25.0 35.0 6.0 4040DE08 40 40 M8 8.6 15.8 21.7 8.0 4040DE10 40 40 M10 8.6 15.8 21.7 8.0 4045DE10 40 45 M10 7.3 13.7 18.8 9.0 5025DE10 50 25 M10 36.2 66.7 91.9 5.0 10055DE16 100 55 M16 59.6 110.6 153.2 11.0 10060DE16 100 60 M16 51.9 94.2 130.8 12.0 15075DE16 150 75 M16 60.4 108.2 150.7 15.0 15075DE20 150 75 M20 60.4 108.2 150.7 15.0 5030DE10 50 30 M10 28.4 52.4 72.0 5.0 5040DE10 50 40 M10 14.6 27.1 37.7 8.0 5045DE10 50 45 M10 11.5 21.5 30.0 9.0 5050DE10 50 50 M10 9.3 17.8 24.2 10.0 6036DE10 60 36 M10 35.8 66.5 91.9 7.2 6036DE12 60 36 M12 32.6 60.6 83.8 7.2 6040DE10 60 40 M10 29.4 54.9 74.6 8.0 6040DE12 60 40 M12 29.4 54.9 74.6 8.0 6045DE10 60 45 M10 23.3 43.5 60.3 9.0 6045DE12 60 45 M12 23.3 43.5 60.3 9.0 6050DE12 60 50 M12 18.7 34.7 47.8 10.0 6545DE10 65 45 M10 26.3 48.5 67.0 9.0 6545DE12 65 45 M12 26.3 48.5 67.0 9.0 6550DE12 65 50 M12 20.0 36.7 51.1 10.0 7030DE10 70 30 M10 74.2 137.5 187.5 6.0 7030DE12 70 30 M12 74.2 137.5 187.5 6.0 7040DE10 70 40 M10 42.6 79.4 110.3 8.0 7040DE12 70 40 M12 42.6 79.4 110.3 8.0 7045DE10 70 45 M10 33.3 61.5 83.8 9.0 7045DE12 70 45 M12 33.3 61.5 83.8 9.0 7050DE10 70 50 M10 27.3 50.0 69.3 10.0 7050DE12 70 50 M12 27.3 50.0 69.3 10.0 7070DE10 70 70 M10 17.7 32.8 45.3 14.0 7070DE12 70 70 M12 17.7 32.8 45.3 14.0 7540DE12 75 40 M12 46.2 85.3 117.6 8.0 7550DE12 75 50 M12 34.1 63.6 88.6 10.0 7555DE12 75 55 M12 26.5 50.0 69.4 11.0 8040DE14 80 40 M14 62.9 117.6 161.8 8.0 8050DE12 80 50 M12 42.0 78.4 108.0 10.0 8050DE14 80 50 M14 42.0 78.4 108.0 10.0 8060DE14 80 60 M14 27.8 51.9 71.3 12.0 10040DE16 100 40 M16 121.9 218.8 303.1 8.0 10050DE16 100 50 M16 72.6 131.0 1810.0 10.0 Suzhou Seles Deals Vibration Technology Co., Ltd. Tel: 0512-68786858 Mobile: 18551266677 Company Website: www.sailaisi.com Address: Riverside Road, Suzhou New District 1701 Noise Control Method One: active noise reduction. Active noise reduction is the use of computer technology, based on the noise of the sampling frequency, amplitude, period, etc., and generates near synchronous inverted signal superimposed to achieve the purpose of noise control. Currently, this type of noise control method is not mature enough, in the research and development stage. Noise Control Method two: passive noise reduction. Most noise reduction methods are passive noise reduction. In accordance with the use of materials and parts can be divided into vibration noise control, acoustic noise control and soundproofing noise control. In most cases, a variety of methods are usually combined use. According to the current material technology and construction techniques, basic can control any noise. Beijing Branch source of sound noise control engineering and technology Equipment Co., Ltd. adopt measures to control the sound output noise source, the control of noise propagation and reception, to give it the desired acoustic environment, namely noise control. Using a variety of noise control methods can receive different noise reduction. As ordinary gear mechanical transmission parts changed elastic sleeve gear, it can reduce noise 15 to 20 db; caulking into welding, forging into the friction pressure processing, generally 30 to 40 db noise reduction. Select control measures and reasonable measures to control noise is based on the cost of noise control and noise standards to allow the relevant factors, labor productivity such as a comprehensive analysis determined. Control of environmental noise control technology is the basic means. Administrative measures and proper planning are also very important. Noise control technology basically all of the noise problem can be divided into three parts: source - transmission - receiver. Thus, the general noise control techniques are divided into three parts to consider. The first is to reduce the sound source of the noise, if you can not do, or can do but not the economy, is considered to reduce the spread pathway. As the above scheme still meet the requirements of noise control or uneconomical may consider the recipient's personal protection. (1) sound source control reduces noise source itself is the ultimate solution; (2) the transmission of noise control; (3) the absorption: the main use of sound-absorbing material or absorbent structure to absorb acoustic energy; (4) Noise: with sound shield block, isolate, is one of the most effective measures to control the noise; (5) muffler: muffler is the use of mufflers to reduce the spread of sound in air.