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Suction valve piece break
Suction valve flap breakage is a typical feature of a liquid hammer failure. According to reports, the compressor of the heating and cooling circulator is a mechanical device for compressing gas. When the piston of the heating and cooling circulator is compressed for 1,450 times per minute (half-sealed compressor) or 2,900 times (full-sealed compressor), an inhalation is completed. Or the time of the exhaust process is 0.02 seconds or even shorter.
Due to the size of the suction and exhaust aperture on the valve plate of the heating and cooling circulator and the elasticity and strength of the suction and exhaust valve plate are designed according to the gas flow, the flow when the inhalation enters the cylinder with more droplets belongs to the two phases. The flow, the impact generated on the suction valve piece is not only high in strength but also high in frequency and destructive.
Refrigeration compressor connecting rod break
If the liquid that heats the cooling circulator does not evaporate and exit the cylinder in time, the piston will compress the liquid as it approaches top dead center. The high pressure generated by the liquid cooling of the heating and cooling circulator has a great destructive property, which causes the connecting rod to bend or even break. Other compression members (valve plate, valve plate pad, crankshaft, piston, piston pin, etc.) will also have Deformed or damaged, but often overlooked, or confused with excessive exhaust pressure.
According to the industry, when inspecting the heating and cooling circulator compressor, it is easy to find the bent or broken connecting rod and give it a replacement, and forget to check whether other parts are deformed or damaged, thus laying the groundwork for future faults.
The heating or cooling circulator is caused by the bending or breaking of the connecting rod in a short time. The piston and the crankshaft at both ends of the connecting rod move freely, and there is generally no axle or seizure caused by severe wear. Although the valve chip debris occasionally causes serious scratches on the piston and cylinder face after the suction valve piece is broken, the surface scratch and the lubrication failure cause the wear to be very different.
Secondly, the breakage of the connecting rod caused by the liquid hammer is caused by the pressure, and the connecting rod and the broken joint have the pressing characteristics. Although the connecting rod after the cylinder of the heating and cooling circulator is squeezing is also likely to be crushed, the premise is that the piston must be stuck in the cylinder. The connecting rod after the axle is broken is even more different. The big rod of the connecting rod and the crankshaft are seriously worn, and the breaking force is the shearing force, and the breaking is different. After that, before the axle is held and the cylinder is bitten, the motor will be overloaded, the motor will be hot, and the thermal protector will operate.
The above is the analysis of the cause of the liquid blow phenomenon in the heating and cooling circulator. The industry said that if the users themselves are difficult to solve these problems, they can be solved by professional maintenance personnel. This again shows the importance of choosing a regular, reliable manufacturer's product when purchasing a product.
According to the industry, the liquid hammer failure of the liquid cooling of the heating and cooling circulator is mainly divided into two types. When more liquid refrigerant, lubricating oil or a mixture of the two enters the compressor cylinder at a higher speed with the suction, the suction valve piece may be excessively bent or broken due to the impact and incompressibility of the liquid; When the liquid that has not been vaporized and discharged in the cylinder is compressed by the piston, the pressure is instantaneous and the deformation and damage of the force-receiving member are caused.