Application Guidelines and Failure Analysis of CQ Corrosion Resistant Magnetic Pump
October 14 07:07:59, 2023
Anti-corrosion magnetic pump is widely used in chemical, pharmaceutical, petroleum, electroplating, food, film, photographic printing and dyeing, scientific research institutions, national defense and other units pumping acid, lye, oil precious precious liquid, venom, volatile Liquid, as well as equipment supporting circulating water, over-speed machine supporting. In particular, easy to leak, flammable, explosive liquid pumping. However, prolonged use will inevitably lead to failure, failure will lead to the decline in production efficiency, shorten the life of the instrument, and even affect personal safety. These problems should be promptly resolved, the following Xiaobian for everyone to introduce CQ corrosion-resistant magnetic pump application guidance and failure analysis. CQ corrosion-resistant magnetic pump application guidance 1, because the cooling and lubrication of magnetic pump bearings are transported by the media, it is absolutely forbidden to move freely, while avoiding the power outage after the start of the time-space-load operation. 2, was transported medium, if it contains solid particles, the pump inlet to add filter: If containing ferromagnetic particles, the need to add magnetic filter. 3, magnetic pump in use should be less than the ambient temperature 40 ℃, the motor temperature should not exceed 75 ℃. 4, the medium being transported and its temperature should be within the allowable range of the pump. Engineering plastic pump temperature 5, for the transmission fluid is easy to precipitate crystallization of the media, after use should be promptly cleaned, drain the pump effusion. 6, 500 hours after running the magnetic pump, the bearing should be demolished and the wear ring moving the end surface, if the bearing and sleeve clearance greater than 0.5 ~ 1mm, impeller axial movement 1.5 ~ 2mm, the bearing should be replaced and the axial movement ring. CQ magnetic pump failure analysis is as follows: (1) magnetic pump shaft break. CQ-type stainless steel magnetic pump shaft material used is 99% of alumina ceramic, the main reason for the shaft is broken, because the pump runs dry, the shaft bearing dry wear and tear. Open the pump inspection can be seen when the bearing has been seriously damaged to prevent the pump broken off the main method is to avoid the air pump running. (2) magnetic pump bearing damage. CQ-type stainless steel magnetic pump bearings are made of high-density carbon, in case of pump water or pump impurities, it will cause the bearing damage. Cylindrical coupling inside and outside the rotor between the coaxial requirements if not guaranteed, it will directly affect the bearing life. (3) magnetic pump can not play the liquid. CQ-type stainless steel magnetic pump can not play the liquid pump is the most prone to failure, the reasons are more. First of all, check whether the pump suction pipe leaks, check the suction pipe air is exhausted, the amount of liquid filled in the magnetic pump is sufficient, inhalation tube whether there is debris clogging, check whether the pump is reversed (Especially after changing the motor or overhauling the power supply line), you should also pay attention to whether the suction height of the pump is too high. If you still can not check more than a few times, you can open the pump inspection to see if the pump shaft is broken, but also check the pump moving ring, static ring is intact, the entire rotor can move a small amount of axial. If the axial movement difficulties, can check whether the carbon bearing with the pump shaft is too close. Bearings, inner rotor and spacer in the operation will produce heat, which will make the working temperature, on the one hand to reduce the power transfer, on the other hand to send easily vaporized liquid CQ-type stainless steel magnetic pump will have a great trouble. Under special circumstances, when the magnetic coupling slips (out of step), the eddy current heat in the spacer increases rapidly and the temperature rises sharply. If it is not processed in time, the magnet will demagnetize and make the magnetic coupling fail. Therefore, the magnetic pump should design a reliable cooling system. Further reading: industry leaders IFAT China Guangzhou Exhibition building water pump manufacturers ranking article belongs to Internet industry (Xiamen) Co., Ltd. All are welcome to reprint, please indicate the source and author of: Asian pumps Network Editor: gogoing (QQ / WeChat:) Starting: http://beng.liuti.cn/ (Service Hotline:)