Large high-temperature high-lift two-stage full-lining oil slurry pump

Abstract

The invention relates to a large high-temperature high-lift two-stage full-lining oil slurry pump. The oil slurry pump comprises a shaft as well as a pump cover and an outer shell fixedly arranged onthe shaft. The pump cover and the outer shell are fixedly connected to jointly form an outer shell cavity in an enclosing mode, a positioning pin hole is arranged in the end, close to a driving side,of the outer shell, and a positioning pin matched with a base is arranged in the positioning pin hole. A guide structure is arranged at the end, away from the driving side, of the outer shell. When the oil slurry pump is used for delivering high-temperature liquid, the end, close to the driving side, of the outer shell is fixed, the end, away from the driving side, of the outer shell is guided bythe guide structure to freely expand away from the driving side. According to the large high-temperature high-lift two-stage full-lining oil slurry pump, the situation that expansion of the oil slurrypump is likely to damage a driving mechanism is prevented, damage to the outer shell is also prevented, meanwhile, connecting structures and sealing structures between various components in the outershell cavity are protected, and stable and reliable work of the oil slurry pump can be ensured.

Description

technical field [0001] The invention belongs to the technical field of oil slurry pumps, and in particular relates to a high-temperature, high-lift two-stage fully-lined oil slurry pump containing solid catalyst particles suitable for large-scale catalytic cracking and catalytic cracking. Background technique [0002] Slurry pumps are widely used in the petroleum and chemical industries to transport high-temperature petroleum and chemical liquids. Due to the high temperature of the transported liquids, not only the pump body needs to have good high temperature resistance, but also needs to have excellent performance during transportation. Excellent sealing performance, can not produce any leakage. However, the pump body of the existing oil slurry pump is basically fixed on the base, that is, the pump body of the oil slurry pump is restricted by the base and is difficult to expand freely. This structure of the pump body being constrained and difficult to expand freely not on...

AI Technical Summary

Problems solved by technology

However, the pump body of the existing oil slurry pump is basically fixed on the base, that is, the pump body of the oil slurry pump is restricted by the base and is difficult to expand freely.

This structure of the pump body that is constrained and difficult to expand freely not only increases the internal stress of the pump body, but also has an adverse effect on the sealing structure inside the pump body, which is likely to cause damage to the pump body and lead to leakage.

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