WO2019006932A1

WO2019006932A1 - Downcomer anti-choking structure

Info

Publication number: WO2019006932A1
Application number: PCT/CN2017/108589
Authority: WO
Inventors: 秦松
Original assignee: 南通锐深环保科技有限公司
Priority date: 2017-07-06
Filing date: 2017-10-31
Publication date: 2019-01-10

Abstract

A downcomer anti-choking structure, comprising: a downcomer (1), a supporting steel angle (2), a connection plate (3), an impingement plate (4) and a tension wire (5). The supporting steel angle (2) is welded at a top end outer wall of the downcomer (1). The connection plate (3) is fixed onto the supporting steel angle (2) by means of a bolt (7). The impingement plate (4) is perpendicularly fixed at a central position of the connection plate (3). The tension wire (5) is fixed between the impingement plate (4) and the connection plate (3) so as to form a right-angled triangle.

Description

Downpipe anti-liquid plug structure

Technical field

The utility model relates to a downcomer, in particular to a liquid drop plug structure.

Background technique

The downcomer is a passage for the liquid of the plate tower to pass through, which has separated bubbles and reduces the gas phase back mixing between the plates.

For the double downcomer tray, when a large amount of liquid flows from the both sides to the center or near the center of the downcomer, it is easy to hedge and form a waterfall-like liquid plug, resulting in poor gas-liquid flow and easy flooding.

Utility model content

Purpose of the utility model: In view of the defects in the background art, a liquid-repellent liquid-repellent plug structure is now provided, which can effectively eliminate liquid heaviness on both sides, thereby preventing liquid plugging, and facilitating separation of gas in the liquid phase as soon as possible.

Technical solution: The utility model discloses a downpipe anti-liquid plug structure, which comprises a downcomer, a supporting angle steel, a connecting plate, an anti-shocking plate and a lacing, wherein the supporting angle steel is welded on the outer wall of the downcomer of the downcomer, the connecting plate The bolt is fixed on the supporting angle steel by bolts, and the impact plate is vertically fixed at the center of the connecting plate, and the rib is fixed between the anti-shock plate and the connecting plate to form a right-angled triangle.

Preferably, the supporting angle steel is symmetrically welded on both sides of the downcomer, and the same side of the downcomer is welded with a plurality of supporting angles, and the connecting plate has an L-shaped bent end, and the non-bending end and the supporting end thereof The angle steel is fixed, and the bent ends of the two connecting plates are oppositely arranged and have a slit in the middle, and the lower end of the punching plate is inserted between the gaps of the bent ends of the two connecting plates, and is fixed by bolts.

Preferably, the length of the anti-shock plate is 100 mm smaller than the tower diameter.

Preferably, the lacing is formed by bending both ends of the flat steel strip with a width of 30 mm, uniformly distributed along the length direction of the anti-shock plate, and the distance between the lacing bars is 300 mm-500 mm, and the ends of the ribs and the anti-shock plate and The supporting angle steels are fixed by bolts so that the ribs and the connecting plates form a triangular structure, which increases the stability of the liquid-proof plug structure.

In the multi-overflow tray, the liquid-repellent plug structure is generally designed above the central downcomer and the off-centrifugal downcomer. In this structure, the height of the anti-shock is determined by the amount of liquid, generally set to 200mm-250mm, ensuring The liquid does not pass over the impact plate.

Advantageous Effects: The liquid-repellent liquid-repellent plug structure disclosed by the utility model has the following beneficial effects: when a large amount of liquid on the tray plate flows from the two sides toward the center or near the central portion of the downcomer, the impact will be impacted. After the plate flows into the downcomer, the impact is beneficial to the smooth flow of liquid into the downcomer and also facilitates the separation of the gas in the liquid phase as quickly as possible.

DRAWINGS

Figure 1 is a side cross-sectional view of the present invention.

Detailed ways

The technical solutions of the embodiments of the present invention will be clearly and completely described in the following with reference to the accompanying drawings.

As shown in FIG. 1 , the utility model discloses a downcomer anti-liquid plug structure, which comprises a downcomer 1 , a supporting angle 2 , a connecting plate 3 , an anti-shocking plate 4 and a lacing 5 , wherein the supporting angle steel 2 is welded. On the outer wall of the top end of the downcomer 1, the connecting plate 3 is fixed on the supporting angle 2 by bolts, and the anti-shocking plate 4 is vertically fixed at the center of the connecting plate 3, and the reinforcing bar 2 is fixed between the anti-shock plate and the connecting plate. Right triangle.

Specifically, the supporting angle steel 2 is symmetrically welded on both sides of the downcomer, and the same side of the downcomer is welded with a plurality of supporting angles, and one end of the connecting plate 3 is L-shaped bent 6, which is not folded. The curved end and the supporting angle steel are fixed by bolts 7. The bent ends of the two connecting plates are oppositely arranged and have a gap in the middle. The length of the anti-shocking plate 4 is 100 mm smaller than the tower diameter, and the lower end is inserted into two opposite connecting plates. The gap between the curved ends is fixed by bolts, and the length of the entire anti-shock plate is fixedly supported by a plurality of sets of connecting plates. The ribs 5 are formed by bending both ends of the flat steel strip with a width of 30 mm, and are evenly distributed along the length of the anti-shock plate. And the distance between the ribs is 300mm-500mm, and both ends of the ribs and the anti-shock plate and the supporting angle steel are fixed by bolts, so that the lacing and the connecting plate form a triangular structure, and the liquid-repellent plug structure of the downcomer is increased. stability.

The utility model discloses a downpipe anti-liquid plug structure, the principle of which is a tower with a certain diameter, and the cross section for free flow of gas and liquid phases is limited, and if the flow rate of one of the two increases to a certain The limit, the liquid in the downcomer can not flow smoothly; when the liquid in the downcomer is full to the overflow dome of the upper plate, it will flow to the upper plate, causing abnormal liquid accumulation, and finally can lead to two layers Filled with foaming liquid. This phenomenon is called flooding. The liquid-repellent plug structure is arranged on the downcomer to prevent liquid from escaping and form a waterfall-like liquid plug, so that the gas-liquid flow is smoother and the occurrence of flooding is eliminated.

The technical content and the technical features of the present invention have been disclosed as above. However, those skilled in the art may still make various substitutions and modifications without departing from the spirit of the present invention based on the disclosure of the present invention. Therefore, the scope of protection of the present invention should be The invention is not limited to the embodiments disclosed, but includes various alternatives and modifications without departing from the scope of the invention.

Claims

The utility model relates to a downcomer anti-liquid plug structure, which comprises: a downcomer, a supporting angle steel, a connecting plate, an anti-shocking plate and a lacing, wherein the supporting angle steel is welded on the outer wall of the top of the downcomer, and the connecting plate is fixed on the support by bolts On the angle steel, the anti-shock plate is vertically fixed at the center of the connecting plate, and the rib is fixed between the anti-shock plate and the connecting plate to form a right-angled triangle.
The downpipe anti-plug structure according to claim 1, wherein the supporting angle steel is symmetrically welded on both sides of the downcomer, and a plurality of supporting angles are welded on the same side of the downcomer. One end of the connecting plate is bent in an L shape, and the non-bending end is fixed to the supporting angle steel, and the bent ends of the two connecting plates are oppositely disposed with a slit in the middle, and the lower end of the anti-punching plate is inserted into the two connecting plates and bent. The gap between the ends is fixed by bolts.
The downcomer liquid proof plug structure according to claim 1, wherein the tensile rib is a flat steel strip with a width of 30 mm, and the two ends are bent and passed through the bolt and the top of the anti-shock plate and the supporting angle steel. Fixed to form a triangular structure.