Screw pumps play an important role in the chemical industry, exploration and mining, ceramic industry, energy industry, pharmaceutical production, food processing, cosmetic industry and other industries, because of its role in accelerating the development of these industries. Although there are still some unexpected accidents in their work, after years of summary and development, we have had a good experience in the face of screw pump failure. Next, we will explain the screw pump failure and solutions. Screw pump failure analysis and solutions 1, the pump does not absorb oil: the suction pipe is blocked or leaks, the suction height exceeds the allowable suction vacuum height, the motor reversal; 2, medium viscosity is too large: overhaul the suction pipe to reduce the inhalation height, change The motor is turned to heat the medium; 3, the power of the shaft increases sharply: the discharge pipe is blocked, the screw and the pump sleeve are seriously rubbed and the viscosity of the medium is too large; 4, the vibration of the pump is big: the pump and the motor are different, 5, the pump heat: severe pump friction, mechanical seal back, plug the oil temperature is too high; 6, a large number of mechanical seal oil spill : The assembly position is wrong, the sealing gland is not flat, dynamic ring or static seal surface bursting, moving ring or static ring seal damage; 7, the flow rate decreased: suction line blocked or leak, screw and pump wear, Safety valve spring is too loose or valve and valve seat contact lax, motor speed is not enough, repair suction pipe, serious wear and tear should be replaced parts, adjust the spring, grinding valve and valve seat, repair or replace the electric ; More than 7:00 is usually the case in the use of screw pumps more prone, but very fortunately, for these problems, we have a better solution. The use of equipment can not be smooth and always meet some of the situation occurs, as long as the user find a reasonable solution even if the encounter problems, it will not lose confidence in the product.
