Multi-stage series gas-liquid flow equalizer

Abstract

The invention discloses a multistage serial gas-liquid flow averaging device. The multistage serial gas-liquid flow averaging device mainly comprises a core tube, an internal separator, a disc, spray perforated plates, flow dividing tubes and baffles, wherein the internal separator is fixed inside the core tube; the disc is formed below the internal separator of the core tube; the spray perforated plates and the baffles are alternately fixed outside the core tube; each spray perforated plate is provided with an opening; a winding tube bundle penetrates trough each baffle; the flow dividing tubes uniformly penetrate through the spray perforated plates; each flow dividing tube is provided with a slot and an overflow port. The multistage serial gas-liquid flow averaging device is mainly applied to intermediate stages, which are connected in series, of multistage gas-liquid flow dividers in industrial middle-large sized coiled tubular heat exchangers. The multistage serial gas-liquid flow averaging device can solve the problems of low operating efficiency, high energy consumption and short service life of a coiled tubular heat exchanger and the limitation of a single-stage gas-liquid flow averaging device caused by nonuniformity of gas-liquid two-phase distribution in the prior art.

Description

technical field [0001] The invention relates to a multistage serial gas-liquid flow equalizer, which belongs to the technical field of gas-liquid two-phase flow. Background technique [0002] Wound tube heat exchangers are important equipment used in large-scale petrochemical and natural gas liquefaction plants. Due to their complex process calculations, manufacturing is extremely difficult. Engineering technology has been monopolized by foreign companies, and localization has been slow. In the past ten years, my country has only carried out a series of related research on the localization of coiled tube heat exchangers, and realized the localization of small multi-stream coiled tube heat exchangers. [0003] The coiled tube heat exchanger has a compact structure, and the flow conditions of the two-phase flow are complicated. It is difficult to design the distribution structure of the two-phase flow inlet. In addition, the flow is oscillating, and it is very difficult to eve...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a multi-stage series gas-liquid flow equalizer, which can solve the problem of uneven distribution of the gas-liquid two-phase flow after entering the heat exchange tube bundle section in the shell side of the coiled tube heat exchanger, resulting in the The working efficiency of the heat exchanger is low, the pressure drop generated when the gas-liquid two-phase flow flows through the equipment, and the life of the heat exchanger is shortened.

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