CN2444669Y

CN2444669Y - Hanging downpipe

Info

Publication number: CN2444669Y
Application number: CN 00240611
Authority: CN
Inventors: 褚雅志; 李航胜
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-10-13
Filing date: 2000-10-13
Publication date: 2001-08-29
Anticipated expiration: 2010-10-13

Abstract

The utility model discloses a novel hanging liquid descending pipe. The lower part of the pipe wall of the liquid descending pipe is transversely bent towards the inner side of the pipe to be tilted upwards. The utility model can be arranged not only at the middle part of a tower disc but also at both sides of the tower disc. A liquid receiving disc of a traditional tower disc is changed into an effective mass transfer area, which leads the handling capacity of the tower disc to reach a maximum value. Simultaneously, the mass transfer efficiency is improved in maximum degree.

Description

Novel suspended downspout

The utility model relates to a kind of petrochemical industry knockout tower inner part.

Common downspout tower tray is provided with seal pot (seeing Fig. 1, Fig. 2), and the effective area of the long-pending 4--25% of the tower section that generally will account for reduces effective mass transfer area of tower tray, and the treating capacity of tower tray and separative efficiency do not reach maximum.And suspended downspout adopts the suspension type seal pot to solve fluid-tight problem (seeing Fig. 3, Fig. 4), fluid flows to downspout from suspension type seal pot both sides, cause suspension type seal pot below view field to form and be detained the dead band, influence separative efficiency, its influence degree is aggravated with the increase that the downspout area accounts for the long-pending percentage of tower section.

The purpose of this utility model is: a kind of novel suspended downspout is provided, and it becomes effective mass transfer zone with the seal pot of conventional trays, makes the disposal ability of tower tray reach maximum, and mass-transfer efficiency also is to maximize simultaneously.

The technical solution of the utility model is: a kind of novel suspended downspout, the tube wall bottom of described downspout are upwards rolled over behind the inboard transverse fold of pipe again and are stuck up.

One of technical scheme that the utility model is detailed is: a kind of novel suspended downspout, the tube wall bottom of described downspout are upwards rolled over behind the inboard transverse fold of pipe again and are stuck up; The cross section of described downspout is a rectangle, is installed on the centre of tower tray, and the bottom of downspout forms little rectangular channel in the middle of the downspout bottom after upwards folding sticks up again behind the inboard transverse fold of pipe, and the top of little rectangular channel is provided with the strip cover cap.

Two of the technical scheme that the utility model is detailed is: a kind of novel suspended downspout, the tube wall bottom of described downspout are upwards rolled over behind the inboard transverse fold of pipe again and are stuck up; The cross section of described downspout is trapezoidal, be installed on the both sides of tower tray, away from the tower tray center is trapezoidal minor face, near the tower tray center is trapezoidal long limit, the bottom on trapezoidal long limit behind the inboard transverse fold of pipe more upwards folding stick up and be connected with dual-side and throw off inclination in the bottom Xiang Guan of trapezoidal minor face with trapezoidal minor face bottom.

The utility model has the advantages that:

1. for center downcomer, the utility model can make fluid flow out from the downspout centre position, avoided the formed delay of additional suspension type seal pot dead band, improved mass-transfer efficiency, has good fluid-tight effect simultaneously, reduce the operation lower limit, improved the disposal ability of tower tray to greatest extent.

2. for the both sides downspout, the utility model can utilize tower wall water conservancy diversion liquid, the deflector that tilts in downspout simultaneously then can reduce the generation of foam, increase the runner of fluid, the liquid handling capacity of downspout unit are is improved, the formed trapezoidal closed downflow weir of this downspout, weir length has been increased more than one times, just mean that also liquid flowing strength can reduce by one times, can reduce the downspout area occupied, be particularly suitable for the bigger operating mode of liquid load, save the tower body space, improve tower tray mass transfer zone.

The utility model will be further described below in conjunction with drawings and Examples:

Fig. 1, Fig. 2 are the structural representation of one of prior art;

Fig. 3, Fig. 4 are two structural representation of prior art;

Fig. 5, Fig. 6 are a kind of mounting structure schematic diagram of the present utility model;

Fig. 7, Fig. 8 are the utility model similar alternative arrangements schematic diagram;

Wherein: 1 downspout; 2 tube walls; 3 tower trays; 4 little rectangular channels; 5 strip cover caps; 6 trapezoidal minor faces; 7 trapezoidal long limits; 8 trapezoidal side edges.

Embodiment one: as shown in the figure, a kind of novel suspended downspout, tube wall [2] bottom of described downspout [1] is upwards rolled over behind the inboard transverse fold of pipe again and is stuck up; The cross section of described downspout [1] is a rectangle, be installed on the centre of tower tray [3], the bottom of downspout [1] forms little rectangular channel [4] in the middle of downspout [1] bottom after upwards folding sticks up again behind the inboard transverse fold of pipe, the top of little rectangular channel [4] is provided with strip cover cap [5].For center downcomer, the utility model can make fluid flow out from downspout [1] centre position, avoided the formed delay of additional suspension type seal pot dead band, improved mass-transfer efficiency, has good fluid-tight effect simultaneously, reduce the operation lower limit, improved the disposal ability of tower tray to greatest extent.

Embodiment two: as shown in the figure, a kind of novel suspended downspout, tube wall [2] bottom of described downspout [1] is upwards rolled over behind the inboard transverse fold of pipe again and is stuck up; The cross section of described downspout [1] is trapezoidal, be installed on the both sides of tower tray [3], away from tower tray [3] center is trapezoidal minor face [6], near tower tray [3] center is trapezoidal long limit [7], the bottom on trapezoidal long limit [7] behind the inboard transverse fold of pipe more upwards folding stick up and be connected with dual-side [8] and throw off inclination in the bottom Xiang Guan of trapezoidal minor face [6] with trapezoidal minor face [6] bottom.For the both sides downspout, the utility model can utilize tower wall water conservancy diversion liquid, the deflector that tilts in downspout [1] then can reduce the generation of foam simultaneously, increase the runner of fluid, the liquid handling capacity of downspout [1] unit are is improved, the formed trapezoidal closed downflow weir of this downspout [1], weir length has been increased more than one times, just mean that also liquid flowing strength can reduce by one times, can reduce downspout [1] area occupied, be particularly suitable for the bigger operating mode of liquid load, save the tower body space, improve tower tray [3] mass transfer zone.

Claims

1. novel suspended downspout is characterized in that: tube wall [2] bottom of described downspout [1] behind the inboard transverse fold of pipe more upwards folding stick up.

2. novel suspended downspout according to claim 1, it is characterized in that: the cross section of described downspout [1] is a rectangle, be installed on the centre of tower tray [3], the bottom of downspout [1] is after upwards folding sticks up again behind the inboard transverse fold of pipe, form little rectangular channel [4] in the middle of downspout [1] bottom, the top of little rectangular channel [4] is provided with strip cover cap [5].

3. novel suspended downspout according to claim 1, it is characterized in that: the cross section of described downspout [1] is trapezoidal, be installed on the both sides of tower tray [3], away from tower tray [3] center is trapezoidal minor face [6], near tower tray [3] center is trapezoidal long limit [7], the bottom on trapezoidal long limit [7] behind the inboard transverse fold of pipe more upwards folding stick up and be connected with dual-side [8] and throw off inclination in the bottom Xiang Guan of trapezoidal minor face [6] with trapezoidal minor face [6] bottom.