fuyangby@126.com
86 15188770013
fuyangby@126.com
86 15188770013
1. Structural composition
The double-layer pump casing structure mainly includes the pump body, pump cover, and wear-resistant metal lining (including impeller, sheath, protective plate, etc.). This structure allows the inner lining to be replaced separately after wear, without the need to replace the entire pump body, greatly extending the service life of the pump and reducing maintenance costs.
2. Material selection
The pump body and pump cover are made of gray cast iron or ductile iron according to the working pressure, while the wear-resistant lining is made of high chromium wear-resistant alloy material. This material selection not only improves the wear resistance of the pump, but also ensures stable operation under harsh working conditions.
3. Sealing performance
The double-layer pump casing structure has significant advantages in sealing performance. The front and rear cover plates of the impeller are equipped with back blades, which helps reduce leakage and improve the service life and efficiency of the pump. In addition, there are multiple options for the shaft seal, including secondary impeller shaft seal, packing shaft seal, and mechanical seal. These sealing forms can be selected according to specific working conditions to achieve the best sealing effect.
4. Maintain convenience
Due to the double-layer pump casing structure allowing for independent replacement of the inner lining, maintenance work is more convenient. The design of the bearing components also facilitates the adjustment of the clearance between the impeller and the front guard plate, further simplifying the maintenance process.
5. Energy conversion efficiency
In the double-layer pump casing structure, the liquid is thrown from the center of the impeller to the outer edge and gains energy, then decelerates in the snail shaped pump casing and converts some kinetic energy into static pressure energy, ultimately flowing into the discharge pipeline at a higher pressure. This design effectively improves energy conversion efficiency.
6. Installation flexibility
The pump outlet direction of the double-layer pump casing structure can be rotated and installed at multiple angles, providing greater installation flexibility and adapting to different process requirements.
summarize
The double-layer pump casing structure of the slurry pump performs excellently in improving wear resistance, sealing performance, maintenance convenience, and energy conversion efficiency through its unique design and material selection. This structure is particularly suitable for working conditions that require handling high wear and highly corrosive media, such as environmental protection, municipal engineering, mining, and other fields.
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