Method for determining boundary streamline of gap nozzle for creating wide and thin water curtain

A boundary and spout technology, applied in separation methods, chemical instruments and methods, use of liquid separation agents, etc., can solve the problems of uncontrolled boundary flow, high outflow velocity, flow field instability, etc., and reduce local resistance and eddy current resistance. , The effect of improving the uniformity of the outflow speed
CN113095006AActive Publication Date: 2021-07-09HUNAN UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUNAN UNIV OF SCI & TECH
Publication Date
2021-07-09

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Abstract

The invention discloses a gap nozzle boundary streamline determination method for creating a wide and thin water curtain. According to the method, a streamline gap nozzle model is mainly analyzed according to a hydromechanics plane potential flow theory, water flow entering a contraction section B from a parallel section A of a nozzle inlet is regarded as synthetic flow of parallel plane flow and point convergence, and flow from the contraction section B to a nozzle outlet is regarded as synthetic flow of the point convergence and the parallel plane flow; a specific potential function and a flow function are established, and a streamline boundary equation is deduced. According to the method for determining the boundary streamline of the gap nozzle for creating the wide and thin water curtain, the streamline boundary streamline of the gap nozzle is designed, the flow resistance loss of the gap nozzle is reduced, an internal flow field is optimized, and particularly, outlet speed distribution is homogenized.
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Description

technical field

[0001] The invention belongs to the technical field of air purification and its fluid machinery, and in particular relates to a method for determining the streamline of a gap spout boundary for building a wide and thin water curtain. Background technique

[0002] Water curtain dust removal is a specific implementation of wet dust removal technology. It adopts the method of ventilating and purifying the water curtain, and the dusty airflow is mixed with the water curtain to achieve the air purification effect of water curtain dust removal. The mechanism of water curtain dust removal mainly involves inertial collision and contact blocking flow. The formation of traditional water curtains mainly relies on the assistance of gauze. Therefore, the efficiency of water curtain formation and coverage is low, and the gauze blocking the roadway will affect on-site operations.

[0003] Slit spouts can form spray water curtains, but in the field of dust removal, there is ...

Claims

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