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我厂有Y113—2吨蒸空自由锻锤一台,以L5.5—40/8型空压机为动力拖动。开始设计安装的排气管形式是在汽锤配气阀上端水平至车间墙,竖直向下,再水平从车间底过梁下面过去,又竖直返上,排气口末端有一伞形防雨帽(图1双点划线所示部分)。这种排气方式有以下两个问题:①排气噪音>120分贝,夜间生产时2公里外均能听到排气声,严重污染环境。经计算排气流量Q=0.44米~3/次,速度V=37.5米/秒。这样的流速、流量,在排气口气体急剧膨胀,所以产生了高频刺耳噪
I have Y113-2 tons of steam free forging hammer a Taiwan to L5.5-40 / 8-type air compressor for power drag. The design and installation of the exhaust pipe began in the form of the upper end of the hammer gas valve to the shop wall, vertical down, and then level below the floor from the shop under the beam past, and back up vertically, the end of the exhaust port has an umbrella rain Hat (Figure 1 double-dotted line shows the part). This exhaust method has the following two problems: ① exhaust noise> 120 dB, 2 km at night when the production can hear the exhaust sound, serious environmental pollution. Calculated exhaust flow Q = 0.44 m ~ 3 / time, speed V = 37.5 m / s. This flow rate, flow, the rapid expansion of the gas in the exhaust port, resulting in high-frequency jarring noise