Refluence control device of rectifying column
A control device, the technology of internal reflux, applied in the direction of distillation adjustment/control, etc., to achieve the effect of easy heat preservation
Inactive Publication Date: 2008-09-17
ZHEJIANG UNIV OF TECH
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Problems solved by technology
[0004] The purpose of the present invention is to solve and overcome the shortcomings of the existing reflux ratio control device, and provide a rectification column internal reflux control device that does not require operator control, high reliability, and low manufacturing cost
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[0015] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:
[0016] Figure 1- Figure 4 As shown, the reflux control device in the rectification tower mainly includes a slit metering tube 1, a sump 2, a collection tank 3, a discharge pipe 4, a sump ring plate 5 and a sump bottom plate 6, And the liquid receiving space is composed of the sump bottom plate 6, the sump ring plate 5 and the inner wall 8 of the tower; Sealed connection, the inner edge of the sump bottom plate 6 is sealed with the sump ring plate 5, the sump 2 is embedded in the two ends corresponding to a certain diameter of the sump ring plate 5 and connected to the sump ring plate 5 and the sump ring plate 5. The liquid sump bottom plate 6 is sealed and connected. The slit metering tube 1 is a circular tube with a slit 1-1 in the middle of the tube wall and the two ends are not closed. The bottom of the liquid tank 2 is sealed and connected with the li...
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The invention relates to a reflux controller inside the fractionating tower, which comprises a narrow slit gage line, a liquid collecting groove, a gathering tank, a material outlet tube, and an annular plate of liquid collecting groove. Wherein, a bottom plate of liquid collecting groove is arranged inside the tower, whose external edge is sealed connected with the inner wall of tower, and internal edge is sealed connected with the annular plate; the liquid collecting groove is embedded on the diameter of said annular plate and sealed collected to the annular plate and bottom plate; one group of narrow slit gage lines with different slit widths are through the bottom of liquid collecting groove and sealed connected with said liquid collecting groove; the gathering tanks are vertically arranged under the narrow slit gage line while the bottom of each gathering tank is connected with material outlet tube that connected to the valve that controlling the switch. The invention has the advantages that: it can find relative switch according to the reflux rate, that only one adjustment can realize the stable operation; it is made with simple method with right material; and it can be used in the medium with high coagulating point.
Description
technical field [0001] The invention relates to a reflux ratio control device, in particular to a reflux control device in a rectification tower, which can be used in rectification unit operation equipment in chemical industry, petrochemical industry, pharmaceutical industry and other industries. Background technique [0002] When controlling outside the tower, the prior art controls the reflux by using a direct or indirect flow indicating instrument to adjust the ratio of the liquid flow back into the tower to the liquid flow out of the tower to achieve the purpose of control. The existing technology has the following disadvantages in daily operation: 1), it is always inseparable from the operator's control; 2), the service life of the display type flowmeter is not long, especially when it is used for corrosive media ; 3), when the medium to be measured has a high freezing point, the flowmeter needs to have an environment with a temperature higher than the freezing point, s...
Claims
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IPC IPC(8): B01D3/42
Inventor 计建炳徐之超
Owner ZHEJIANG UNIV OF TECH