DunAn water source heat pump chiller compressors generally use more Levin Beverly compressor, below me just briefly explain Beverly Knight screw compressor noisy failure analysis for your reference. Many areas will have a screw compressor noise. 1, you can consider increasing the buffer gas pulsation device under - plate, venturi tube, buffer tank and so on. 2, when the mechanical vibration design of the devices should consider avoiding resonance, as if the compressor is to consider the arrangement of the main pipeline, a reasonable set of tubes cards. If the machine is established, it is only open to consider additional tube in place card. 3, the compressor is not good cause dry friction internal lubrication oil check is normal, if not normal to take timely remedial measures 4, compressor damage caused by some internal components to timely repair parts hit each screw compressor failure analysis an intake filter clear the fault: plug fouling, so that displacement reduction; suction tube is too long, the diameter is too small, resulting in increased inspiratory resistance affects gas, the filter should be cleaned regularly. 2 so that the compressor speed is reduced to reduce displacement: improper use of the air compressor, the air compressor is due to displacement by a certain altitude, the intake air temperature, humidity design, when it is used in excess of the above criteria plateau on time, and decreased inspiratory pressure, displacement inevitably decline. 3 spool valve, piston, piston ring wear serious, ultra-poor, bring the gap increases, leakage increases, affecting Displacement: when is normal wear, the need for timely replacement of wearing parts, such as piston rings. Are not installed correctly, leaving the gap was inappropriate, given the drawings should be corrected, such as when no drawing experience desirable materials for circumferentially between the piston and the cylinder gap, such as cast iron piston, cylinder diameter of the gap value 0.12 / 100 to 0.18 / 100 for aluminum pistons, air gap diameter diameter;; 0.06 / 100 to 0.09 / 100 steel piston preferred the smaller aluminum pistons. 4 compressor suction, exhaust valve failure on the impact of displacement: between the valve seat and valve fall into the metal fragments or other debris, closed lax, the formation of leaks. This affects not only the displacement, but also affect the interstage pressure and temperature changes; sheet in contact with the valve seat formed lax leak affecting the displacement, a is the manufacturing quality problems, such as valves such as warpage, of Second, due to the valve seat and valve leak badly worn formed. 5. The exhaust gas temperature is not higher than the normal means of its design value. Theoretically intake, exhaust temperature increased influence factors are: intake air temperature, pressure ratio, and the compression index (for air compression index K = 1.4). Actual impact on the intake of high temperature factors such as: the middle of the cooling efficiency is low, or inside in the cold affects the heat scale multi-junction, then the subsequent stage of the intake air temperature is bound to be high, the exhaust temperature will be high. Valve leakage, piston rings leak, not only affects the exhaust temperature, but also make the grade between pressure changes, as long as the pressure ratio will be higher than normal so that the exhaust temperature. In addition, water-cooled machine, water or water shortage will involve the exhaust temperature. ☆ pressure is not normal and the exhaust gas compressor discharge pressure is reduced at rated pressure can not meet the requirements of the user's traffic is bound to reduce the exhaust pressure, exhaust pressure to be reduced is the phenomenon of displacement and its essence is not satisfied a user's requirement. At this point, had to replace the exhaust pressure is the same as another, and large displacement machines. Between the impact level is mainly due to abnormal pressure valve leak after leak or piston ring wear, it should be in these areas and take measures to find the reason. Beijing Science and Technology Development Co., Ltd. smooth prosperity www.yasuoji-weixiu.com Contact: Guan Ping professional screw compressor maintenance, compressor fluoride-resistant motor repair, compressor repair Ben oil, the compressor does not increase load maintenance, compressor discharge temperature high maintenance. Beijing Science and Technology Development Co., Ltd. smooth prosperity since its inception, in the "credibility first, customer first" principle of service, after years of efforts, China has become a large-scale central air conditioning and refrigeration compressors repair facility, specializing in supporting the refrigeration mechanical maintenance and repair of refrigeration motor system, comprehensive service to our customers.