无遮挡吃胸膜奶免费看视频,欧美三级全黄牲交视频,无码精品日韩专区第一页,八戒八戒看片在线观看网盘

渣漿泵運行中的振動和噪聲怎么解決
一、 泵振動和噪聲的危害

泵的振動會損壞泵的零件降低泵的壽命，泵的振動會引發噪聲，給予人們不舒適感，危及人們的身體健康，污染環境，所以對泵的振動和噪聲應子控制。
二、泵的振動和噪聲及防止

1. 泵的振動

轉動的泵必然會發生振動，泵的使用單位對泵的振動提出了不同的要求。例如電廠不管泵的大小、形式、轉速高低，要求泵的軸承處的振幅小于0. 08mm。而泵的大小、形式、轉速會影響泵的振動大小，所以泵的生產廠是從泵制造能達到的要求去要求泵的振動大小。目前泵行業是依據JB/T 8097《泵的振動測量與評價方法》來進行測量和評價的( 詳見第八章第五節“泵的振動測量與評價”)。標準中規定了A、B、C、D四個級別，A為優良，B為良好，C為合格，D為不合格，一般在無特殊要求情況下，泵C級即為合格，如果要求較高時，需在合同中注明要求.渣漿泵廠家

How to solve the vibration and noise in the operation of slurry pump

I. hazards of pump vibration and noise

The vibration of the pump will damage the parts of the pump and reduce the life of the pump. The vibration of the pump will cause noise, give people uncomfortable feeling, endanger people's health and pollute the environment. Therefore, the vibration and noise of the pump should be controlled.

II. Pump vibration and noise and Prevention

1. Pump vibration

The rotating pump will inevitably vibrate, and the user of the pump puts forward different requirements for the vibration of the pump. For example, regardless of the size, form and speed of the pump in the power plant, the amplitude at the bearing of the pump is required to be less than 0.08mm. The size, form and speed of the pump will affect the vibration of the pump, so the pump manufacturer requires the vibration of the pump from the requirements that the pump manufacturing can meet. At present, the pump industry is based on JB / T 8097 "vibration measurement and evaluation methods of pumps" (see Chapter VIII, Section V, vibration measurement and evaluation of pumps for details). Four grades A, B, C and D are specified in the standard, a is excellent, B is good, C is qualified, and D is unqualified. Generally, without special requirements, the pump grade C is qualified. If the requirements are high, the requirements shall be indicated in the contract. Slurry pump manufacturer