1、鍋爐水泵發(fā)出噪音通常是水流發(fā)出噪聲和水泵自身結(jié)構(gòu)產(chǎn)生的噪音。水流發(fā)出的噪音是在泵系統(tǒng)中由整倍轉(zhuǎn)速下的周期性脈動(dòng),由泵內(nèi)高流速下產(chǎn)生的紊流或者由汽蝕所產(chǎn)生；結(jié)構(gòu)產(chǎn)生的噪聲是由泵內(nèi)的機(jī)械振動(dòng)或泵和管路內(nèi)液體脈動(dòng)所引起的振動(dòng)造成的。
Boiler water pump noises are usually noisy and pump noise generated by its structure. Flow noise emitted by the pump system in the periodic speed pulsation under aneuploidy, by the turbulence generated by the pump or a high flow rate is generated by cavitation; structural noise generated by the mechanical vibration of the pump or pump and vibration caused by the pulsation in the liquid line caused.
2、爐鼓風(fēng)機(jī)的噪聲主要是來(lái)自風(fēng)扇引起的空氣震動(dòng)性噪音、轉(zhuǎn)子與定子間的摩擦噪聲和機(jī)體運(yùn)轉(zhuǎn)振動(dòng)造成的噪音。鼓風(fēng)機(jī)風(fēng)扇葉片處加套消聲器,把整個(gè)電動(dòng)機(jī)半圍封起來(lái),阻擋了了外殼向外傳播噪音的道路,于大功率的鼓風(fēng)機(jī),可安裝全裝式隔音罩,將整個(gè)鼓風(fēng)機(jī)罩在里面,在罩子上打進(jìn)出氣口,然后上消音器。
Furnace blower noise mainly from friction noise and airframe noise operation between rotor and stator vibration caused by the vibration of air caused by fan noise. Blower fan blades at jacketed muffler, the whole semi-enclosed motor up, blocking the path of the shell to spread noise, high power blower can be installed full-mounted enclosures, the entire blower cover on the inside, in the hood on scored outlet, then the muffler.
3、排氣時(shí),高溫高壓汽體向大氣噴射時(shí)產(chǎn)生射流噪聲.這種噪聲可采用小孔噴注型消聲器,將消聲器安裝于放空管口，選用排氣消聲器應(yīng)注意消聲器的排氣力、流量溫度遵循放空蒸汽的要求,保持有一定強(qiáng)度和耐腐蝕性,在高寒地區(qū)使用還應(yīng)注意蒸汽結(jié)冰堵塞小孔而出現(xiàn)過(guò)壓放空的危險(xiǎn),為此要采取必要安全措施。
When the exhaust, high temperature high pressure vapor into the atmosphere when a jet noise. This noise can be hole injection type muffler, the muffler installed in the vent pipe opening, the choice should be noted that the exhaust muffler exhaust muffler force, the flow follow venting steam temperature requirements, maintaining a certain strength and corrosion resistance, use should also be noted in the alpine region of steam and ice clogged pores appeared dangerous pressure venting, for which you want to take the necessary safety measures.
