Slurry model the importance of common parts

Slurry model the importance of common parts

Proper design and selection of materials flow components are guaranteed centrifugal pump performance and life of an important condition. However, if the pump does not work the other parts, that is, no matter how over-current component design, material selection, no matter how, we can not guarantee the performance and life of the pump.

Experience has shown that the centrifugal pump in operation most of the problems arising from the material selection problems, mainly the selection of components and manufacturing precision problems. Naifushibeng running on accident analysis shows that purely pump performance issues accounted for only 10.6% of the total accidents, others belong to the material selection problems, the main problem of the selection of components and manufacturing precision problems. Thus, slurry pump manufacturer the correct choice of centrifugal pump main parts to ensure the normal operation is an important condition. On centrifugal pump, the flow components accounted for, after all, the number is still relatively small, while other parts of the number, or more.

With the development of national economy, more and more varieties of pump, centrifugal pump parts if efforts to improve the standardization, universal level, it will make more and more types of components, relatively smaller quantities, which production management and causing confusion, limiting the increase in labor productivity, but also to the use and maintenance also brought great difficulties.

Therefore, to continuously improve the standardization of pump parts, GM has been the degree of pump industry an important work. Now, brackets, suspension, frame, packing ring, packing gland, packing sleeve, bearing frame, couplings, seal ring, impeller nuts and other parts have already been the industry standard or series of standards. Product standardization, increasing the degree of generalization. To F-type Naifushibeng example, F-type pump a total of 30 models, but only six bays, an average of five types of products shared a bay. Due to standardization, universal improvement in the level and improve the plant’s production management, improve labor productivity, effectively ensuring the continued leap pump industry.

Therefore, there are skeletons in the J-type rubber seal Ministry of Chemical Industry standards have been incorporated into the standard code HG4-692-67. Tag example: d = 20 mm, D = 40 mm, H = 10 mm, speed. Seal code: PD20x40x10 Choose a rubber seal skeleton key issues: 1 Install sealing mechanism recommended dimensions and surface finish recorded in Figure 9-2. 2 for the easy removal, preferably 3-4 casing drilling diameter d1 = 3 ~ 6 mm holes.

Through the hole in order to remove the seal. 3 for ease of installation, to avoid scratches on the installation sealed bowl, the introduction of the shaft or sleeve Chamfer 15-30 degrees. 4 sides sealing pressure is greater than 0.5 kg / cm ^ 2, it is best used in the low pressure side of the washer to support.