Self-suction type novel liquid sulfur pump

Abstract

The invention provides a self-suction type novel liquid sulfur pump. The self-suction type novel liquid sulfur pump is mainly characterized in that a blade pump is adopted as a conveying pump, a self-suction device comprises a vacuumizing device, a control cabinet and an air exhaust pipeline, and the control cabinet controls automatic starting and stopping of the vacuumizing device and the conveying pump; the whole device is provided with a steam inlet and a steam outlet, and the pipeline, a connector, a pump body, a pump cover and the like are all additionally provided with tracing pipes and tracing cavities; a pump outlet pipeline is additionally provided with a backflow pipeline and an outlet pipe valve; and the backflow pipeline is provided with a backflow pipe valve, and a backflow pipe outlet is connected with a liquid storage tank. The self-suction type novel liquid sulfur pump has the beneficial effects that the self-suction type novel liquid sulfur pump is convenient to maintain, not prone to damage, capable of achieving self suction, high in suction stroke and capable of avoiding machine seal dry grinding, steam tracing is added to the pipeline, the connector, a mechanical seal and the conveying pump, it is prevented that the temperature of a medium is reduced due to the effect of the outside and the medium is condensed after the medium leaves the liquid storage tank, and by means of the backflow pipeline, condensation, caused by non-flowing of the medium in the conveying pump, of the medium left in the pump can be prevented when the device shuts down.

Description

technical field [0001] The invention relates to a new self-priming liquid sulfur pump, which is mainly aimed at high-temperature, poisonous and harmful, high-viscosity, easy-to-crystallization and highly corrosive working conditions such as sulfur in the chemical industry. Background technique [0002] Sulfur is a poisonous and harmful chemical raw material. It is solid at normal temperature. When the temperature of sulfur reaches the melting point, sulfur will melt into liquid sulfur with fluid properties. The viscosity of molten sulfur changes with temperature. Decrease with the increase of temperature, when the temperature exceeds 159 ℃, the viscosity increases sharply with the increase of temperature. When the temperature continues to increase to 190°C, the viscosity of sulfur reaches the maximum value, and when the temperature exceeds 190°C, the viscosity returns to the original characteristics, and the viscosity is the smallest at 130~160°C, which is conducive to the t...

AI Technical Summary

Problems solved by technology

However, the maintenance of long-axis submerged pumps is inconvenient, and the sliding bearings are prone to corrosion and wear, and once the sliding bearings are dry-ground, there is a great safety hazard.

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