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E-mai：warwickpump@gmail.com
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Design points of the submerged pump
release time：2017/01/13 clicks：
Design points of the submerged pump
In the design process, in order to improve the reliability of the operation, we should pay attention to the following aspects, according to scientific computing and experience to choose a reasonable design.
1 Design of 1 axis and shaft support
In order to have excellent sliding bearing running state, then the shaft and the shaft support design is the key, according to the submerging depth, can use rigid shaft or a flexible shaft, under fluid depth within 3M, the rigid shaft, under fluid depth more than 3 meters, should adopt flexible shaft shaft structure. The support mainly depends on the design of the pump shaft, the shaft support if the design is not reasonable, will lead to the wear of sliding bearing and rapid heating, the service life is greatly reduced, and the vibration of the pump is increased, resulting in reduced pump efficiency. So the shafting support should be consistent with the pump shaft running condition, in order to meet the reliability and support shaft have positioning principle, balance shaft rotation, and prevent the generation of "crawling" phenomenon.
2 sliding bearing design
According to the dielectric properties of reasonable selection of Jinan Warwick pump sliding bearing material, including ceramics, graphite Teflon and other materials, in our choice of range can accurately in the design of sliding bearings with length diameter ratio, lubrication groove shape and size, the friction surface of the gap and grinding wiping the surface accuracy and surface roughness, rely on fine processing to ensure parts was coincident with the design, and operation for a period of time running, sliding bearing and stable and reliable operation and achieve an optimal state.
3 sliding bearing cooling and lubrication system design
Stable and reasonable cooling and lubricating system is the guarantee of the reliable operation of the sliding bearing, cooling and lubricating amount is can meet the needs of the sliding bearing, but to sacrifice the overall volume efficiency of the pump; too small cooling and lubrication will cause sliding bearing abnormal wear and temperature rise, friction surface is rapid, reducing shafting supporting role, the consequences are sliding bearing damage, flexible shaft variable big bend even, impeller mouth ring grinding, eventually pump malfunction.
Therefore, the sliding bearing cooling lubrication flow design of the liquid pump has an optimal value, in the case of ensuring the efficiency of the pump will not be seriously reduced, so that the sliding bearing has a good working environment.
In the design process, in order to improve the reliability of the operation, we should pay attention to the following aspects, according to scientific computing and experience to choose a reasonable design.
1 Design of 1 axis and shaft support
In order to have excellent sliding bearing running state, then the shaft and the shaft support design is the key, according to the submerging depth, can use rigid shaft or a flexible shaft, under fluid depth within 3M, the rigid shaft, under fluid depth more than 3 meters, should adopt flexible shaft shaft structure. The support mainly depends on the design of the pump shaft, the shaft support if the design is not reasonable, will lead to the wear of sliding bearing and rapid heating, the service life is greatly reduced, and the vibration of the pump is increased, resulting in reduced pump efficiency. So the shafting support should be consistent with the pump shaft running condition, in order to meet the reliability and support shaft have positioning principle, balance shaft rotation, and prevent the generation of "crawling" phenomenon.
2 sliding bearing design
According to the dielectric properties of reasonable selection of Jinan Warwick pump sliding bearing material, including ceramics, graphite Teflon and other materials, in our choice of range can accurately in the design of sliding bearings with length diameter ratio, lubrication groove shape and size, the friction surface of the gap and grinding wiping the surface accuracy and surface roughness, rely on fine processing to ensure parts was coincident with the design, and operation for a period of time running, sliding bearing and stable and reliable operation and achieve an optimal state.
3 sliding bearing cooling and lubrication system design
Stable and reasonable cooling and lubricating system is the guarantee of the reliable operation of the sliding bearing, cooling and lubricating amount is can meet the needs of the sliding bearing, but to sacrifice the overall volume efficiency of the pump; too small cooling and lubrication will cause sliding bearing abnormal wear and temperature rise, friction surface is rapid, reducing shafting supporting role, the consequences are sliding bearing damage, flexible shaft variable big bend even, impeller mouth ring grinding, eventually pump malfunction.
Therefore, the sliding bearing cooling lubrication flow design of the liquid pump has an optimal value, in the case of ensuring the efficiency of the pump will not be seriously reduced, so that the sliding bearing has a good working environment.
