Method of using high-position centrifugal pump for quenching

Abstract

The invention discloses a method for using a high-position centrifugal pump for quenching, and a device for realizing the method comprises a pool, a submersible pump, a filter, a water pipe, a non return valve, a liquid level device, a centrifugal pump, a speed control valve and a quenching tank body, and a filtration and cooling system. The method utilizes the liquid level device to detect the water level of a pipeline between the non return valve and the centrifugal pump, and controls the opening and closing of the submersible pump and the centrifugal pump by a main controller, the water level of the pipeline between the non return valve and the centrifugal pump is always higher than the axis height of the centrifugal pump, so that the centrifugal pump is not restricted by the installation position, and can always operate normally. The method can effectively overcome the limitations of the use of the centrifugal pump, can also effectively realize the recycling of resources, accords with a new concept of national energy conservation and environmental protection green development, and has good practical value and promotion value.

Description

Technical field: [0001] The invention relates to the field of mechanical engineering, in particular to a method for using a high-position centrifugal pump for quenching. Background technique: [0002] In engineering problems, submersible pumps and centrifugal pumps are widely used, but there are certain limitations in the use of submersible pumps and centrifugal pumps. For large-scale quenching equipment, the demand for quenching medium (water) is relatively large, so a large-volume pool is required to meet production requirements. However, in order to reduce the area occupied by the pool, its depth can only be increased, and the submersible pump needs to be installed below the water surface to work normally. The drop height of the liquid level and the small head of the submersible pump restrict each other, which makes the submersible pump unable to meet the large flow demand of large quenching equipment. For a centrifugal pump, the liquid level needs to be above its axis ...

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Problems solved by technology

[0003] The purpose of the present invention is to solve the practical engineering problem that the centrifugal pump is often installed above the ground, causing the water level in the centrifugal pump to be lower than its axis, so that the centrifugal pump cannot work normally and the traditional installation method of the pump cannot meet the needs of quenching equipment with long-distance, In order to solve the problems of wading performance of large flow and high flow rate, a method of using a high-position centrifugal pump for quenching is proposed.

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