How to lift the high viscosity pump failure

High-viscosity pump is a structure and working principle common gear pump, which is far more stable operation and service life, etc. than the existing gear pump. The new gear pump according to "the displacement of the pump unit when the volume of the smallest" as an optimization objective, improve pump cost. The main features of high viscosity pump are: ① radial hydraulic pressure, radial meshing force balance, so the pump life and reliability greatly improved; ② pump output displacement and flow, small flow pulsation. So that new products with higher added value and competitive advantage, in order to deal with the lack of the traditional two-gear gear pump supply a new path, can replace the existing gear pump, screw pump, etc., in the petrochemical, light industry, food High viscosity liquid industries such as the development and application prospects promising. At present, there are still very few open and open applications in this area in our country and there is plenty of room for development. In the petrochemical industry, the delivery of highly viscous liquids (such as synthetic rubbers, resins, polymeric liquids for fibers, etc.) is one of the major consumer processes, and the machinery used to complete the transfer of liquids is a wide variety of pumps. High viscosity, pump suction resistance larger, in order to ensure that the pump has a self-priming can be, usually using positive displacement pump to deliver high viscosity liquid.Gear pump is the most simple type of positive displacement pump, because of its simple structure , Light weight, low cost, limited change of viscosity, insensitive to the dirt in the liquid, good pump suction function under high viscosity and reliable work, so it is often used in places where the conditions are worse and the accuracy is not high. Viscosity of the liquid.With the new technology, new materials, new technology from time to time emerged, as the past can be thought of as a high-viscosity liquid can be sent to protect, through research and improvement, can now be used to keep the high viscosity pump.In addition, high viscosity pump It can also be used as pressurization, inclusions, metering and spinning of highly viscous liquids. Liquids supplied by high-viscosity pumps are often solid at ambient temperature and liquid at the time of insulation. Thus, when high viscosity pumps deliver these liquids , Not only need to deal with high Viscosity and often accompanied by high temperature, erosion and other extraordinary problems to analyze and discuss the type of high viscosity pump problems and preventive measures, as a reduction of downtime, improve the quality of the pump work, the useful life of the useful life of the delay, is increasingly Has been people's attention.High-viscosity pump type of failure In the diagnosis of high-viscosity pump problems, people found that most of the problems of the gear pump is not a sudden attack, in advance with all the city has some signs, such as vibration, noise, leakage , Fever and so on, to a certain level before they cause problems .If these signs can be found in real time, and to be tempered or swept away, the probability of failure of high-viscosity pump cut.Therefore, to understand the typical type of high-viscosity pump problems, contribute to Analyze its connotation of contact, thereby further affirming the types of problems and causes of the problems, parts. 1, no outlet pressure or lack of pressure It is noteworthy that the pump can not stress, it is only the output flow. Low pressure or no pressure, indicating that the high-viscosity pump is not inhaled liquid or leak serious.Countermeasures: the electric power output of the motor is too small, too large gear pump displacement or pressure is too high, it will form a lack of pressure.Of course, Pressure gauge damage or pressure gauge 撙 Section hole infarction also showed no pressure, this time can be replaced with a new pressure gauge inspection. 2, no flow or a lack of liquid output If you confirm the pump no flow output, it may be because the pump device If the pump is in the wrong position, the pump is in the wrong position, or the suction side (inlet and suction pipe) is blocked, the outlet check valve is installed in reverse or stuck, or the drive shaft is broken. Will cause a lack of liquid volume, this phenomenon is often caused by the pump drive installation skid or lack of power due to this should be checked gear pump practice speed, pump and motor connection and power matching conditions, etc. 3, abnormal vibration And Noise Because of the high viscosity of the working media of high-viscosity pumps, the phenomenon of aspiration is prone to triggering significant noise.