A device for reducing the fluctuation range of the liquid level on the tray

Abstract

The invention relates to an apparatus for reducing the fluctuation amplitude of the liquid level on the tower tray. The apparatus is mainly characterized in that 3-8 longitudinal liquid separation plates aligned in a parallel manner are arranged, the intervals are equal to the length of transverse liquid separation plates, 1-4 columns of the transverse liquid separation plates are arranged and are respectively and vertically connected between the two adjacent longitudinal liquid separation plates so as to form the grids, a floating plate is arranged in each rectangular grid region, the open porosity of the floating plate is larger than the open porosity of the tower tray, the four corners of each floating plate are connected with the longitudinal liquid separation plates respectively through a cylindrical spiral tension spring, the distance from the lower surface of the floating plate to the tower troy is equal to the height of the liquid layer on the tower tray, and the lower ends of the longitudinal liquid separation plates are connected with the tower tray. According to the present invention, the apparatus has characteristics of simple structure, good control effect, convenient installation, easy maintenance and low cost, and provides the good reduction effect on the large-amplitude tower tray liquid fluctuation caused by the tower vibration under the wind load effect.

Description

technical field [0001] The invention relates to a plate tower equipment for heat and mass transfer in the chemical industry, especially its internal structural parts. Background technique [0002] Tower equipment plays an important role in the production process of chemical industry, petrochemical industry, oil refining, etc. Most of the common unit operations such as rectification, absorption, desorption and extraction require tower equipment. The investment in tower equipment is huge, accounting for about 30% to 40% of the total investment in chemical and petrochemical projects, and its performance has a great impact on the production capacity of the entire plant, waste treatment and environmental protection. The tray efficiency is the most important performance index of the tower equipment, and the tray efficiency is affected by many factors, among which the uneven distribution of the liquid level on the tray has a great influence on the tray efficiency, so in the "Tray T...

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Problems solved by technology

Among them, increasing the thickness of the tower wall can improve the rigidity of the tower body, thereby improving the effect of the tower body against wind load, but it is often limited by the manufacturing cost; Chinese patent CN101672125A adds a fin spoiler to the middle and upper part of the tower body to achieve The purpose of turbulence and vibration reduction; Chinese patent CN102644337A sets a TMD damper on the top of the tower to reduce wind-induced vibration of high-rise tower equipment

However, these methods are only aimed at the vibration of the tower body, and can only reduce or reduce the vibration amplitude of the tower body under the action of wind load. However, in actual working conditions, the vibration of the tower body and the inclination of the tray still exist, and the resulting tower The phenomenon that the liquid level on the plate fluctuates greatly and the liquid level is unevenly distributed, resulting in a decrease in the efficiency of the plate still exists

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