High-temperature hydrochloric acid submerged pump

Abstract

The invention discloses a high-temperature hydrochloric acid submerged pump. The high-temperature hydrochloric acid submerged pump comprises a motor, a motor coupler, a pump coupler, a pump shaft, a supporting tube assembly, a water outlet tube, a pump body, an impeller and a strainer, wherein the pump shaft is positioned in the supporting tube assembly; the water outlet tube is arranged beside the supporting tube assembly; the impeller and the pump body are arranged at the lower end of the pump shaft; a bent tube which communicates with the supporting tube assembly is arranged on the lower part of the water outlet tube; the strainer is arranged below the pump body; a bearing block shaft is arranged at the upper end of the pump shaft and is detachably connected with the pump shaft; a bearing block and a rolling bearing are arranged on the upper part of the pump shaft; the rolling bearing is positioned in the bearing block; and a sliding bearing is mounted on the lower part of the pump shaft. The high-temperature hydrochloric acid submerged pump adopts the structure, and can stably work for a long time, maintenance load is reduced, and the using costs are reduced.

Description

technical field [0001] The invention relates to a high-temperature hydrochloric acid submerged pump. Background technique [0002] Automobiles, home appliances, and silicon steel cold-rolled sheet pickling and conveying waste acid discharge media are high-temperature concentrated hydrochloric acid, sulfuric acid, hydrofluoric acid, etc., which are extremely corrosive and have a high temperature (80°C to 100°C), and most metals and alloys None of them can be used as materials for pumps. Special alloys are available but very expensive, so non-metals must be used. Non-metals have strong corrosion resistance, but their physical properties are unstable, and they are easy to expand with heat and contract with cold, which can easily cause damage to the seal of the pump. leakage. The existing high-temperature hydrochloric acid submerged pump includes a motor, a motor coupling, a pump coupling, a pump shaft, a support pipe assembly, an outlet pipe, a pump body, an impeller, and a dr...

AI Technical Summary

Problems solved by technology

With such a structure, it is difficult for the high-temperature hydrochloric acid submerged pump to work stably for a long time, and the maintenance workload is heavy

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