CN210786783U

CN210786783U - Groove type liquid distributor for packed tower

Info

Publication number: CN210786783U
Application number: CN201921140113.6U
Authority: CN
Inventors: 李伟; 彭红波
Original assignee: Hubei Huiquan Rongtai Intelligent Equipment Co Ltd
Current assignee: Hubei Huiquan Rongtai Intelligent Equipment Co Ltd
Priority date: 2019-07-19
Filing date: 2019-07-19
Publication date: 2020-06-19
Anticipated expiration: 2029-07-19

Abstract

The utility model discloses a slot type liquid distributor for packed tower, including primary groove and second grade groove, the below in primary groove is located to the secondary groove, the tank bottom in primary groove is equipped with the through-hole, one-level tank cavity communicates with each other with second grade tank cavity, the second grade groove is fixed on the crossbeam, primary groove fixes on the secondary groove, the secondary groove is the gradually crescent uncovered structure of cross section upwards, the both sides wall of uncovered structure is equipped with a plurality of apertures. The utility model provides a partly easy aperture that blocks up liquid flow through of impurity in the liquid and partly go out from the aperture and fall down the problem of spilling in the tower.

Description

Groove type liquid distributor for packed tower

Technical Field

The utility model relates to a tower internals of chemical industry filled tower, concretely relates to slot type liquid distributor for filled tower.

Background

In order to reduce the amplification effect caused by the liquid maldistribution and fully exert the packing efficiency, a liquid distributor must be installed in the packed tower to distribute the liquid uniformly on the top of the packing layer. The performance of the liquid distributor not only affects the uniformity of liquid distribution and the mass transfer efficiency of the packing, but also affects the operation flexibility of the packed tower. Thus, the liquid distributor makes the inside of the packed column one of the most critical internals.

The liquid distributors are various in type, and the tubular liquid distributor and the trough liquid distributor are two general-type distributors. The tubular liquid distributor is composed of a calandria or ring-tube type perforated pipe, and because the liquid flows in the equal-diameter tubular liquid distributor in a variable speed mode, namely the flow velocity of the liquid along the flow path is gradually reduced, and the static pressure is correspondingly changed, the pipe enables the liquid distributor to have the defects that the flow equalization output of each orifice is difficult, and small holes are easy to block. The groove type liquid distributor consists of a primary groove and a secondary groove, each secondary groove is connected to the bottom of the primary groove, the bottom of the primary groove is provided with a shunting hole corresponding to each secondary groove, and a guide plate or a guide pipe is arranged at the bottom of the secondary groove. The slot bottom of the secondary slot of the slot type liquid distributor in the prior art is provided with a small hole, and the fluid in the secondary slot falls from the small hole of the slot bottom, so that part of impurities in the liquid can be left at the slot bottom of the secondary slot to easily block the small hole, and part of impurities can fall from the small hole to be sprinkled in the tower and still mixed in the liquid or block a channel in the tower.

Chinese patent publication No. CN205700583U discloses a trough-type liquid distributor, in which a diversion channel is provided on the outer side wall of a secondary trough, liquid in a primary trough flows into the secondary trough, the secondary trough overflows into the diversion channel after being filled, the bottom of the diversion channel is provided with a plurality of small holes, and liquid in the diversion channel flows out of the small holes and falls into a tower, wherein impurities in the liquid are left at the bottom of the secondary trough and at the bottom of the diversion channel, so that the above technical problem still exists in the patent, i.e., part of impurities in the liquid are left at the bottom of the diversion channel to block the small holes easily, and part of impurities fall down from the small holes and fall into the tower, and are still mixed in the liquid or block channels in the tower.

Disclosure of Invention

The utility model aims at the problem that prior art exists, provide a slot type liquid distributor for packed tower, solve the problem that the aperture that the impurity part in the liquid flows through of easy jam liquid and some fall to spill in the tower from the aperture.

In order to achieve the above object, the utility model adopts the following technical scheme:

the utility model provides a slot type liquid distributor for packed tower, includes primary tank and second grade groove, the below in primary tank is located to the secondary tank, the tank bottom in primary tank is equipped with the through-hole, one-level tank cavity communicates with each other with second grade tank cavity, the second grade groove is fixed on the crossbeam, primary tank fixes on the secondary tank, the secondary tank is the ascending gradually open structure of cross section, open structure's both sides wall is equipped with a plurality of apertures.

Preferably, the plurality of small holes are arranged at the middle upper parts of the two side walls.

Preferably, the two side walls are inclined at an angle of between 30 ° and 60 °.

Preferably, the small holes are arranged in a staggered mode on the two side walls to form a grid shape, and each small hole is located at the intersection point of the grid.

Preferably, the groove bottom width of the primary groove is smaller than that of the secondary groove.

Preferably, the height from the small holes arranged on the two side walls to the bottom of the secondary groove is greater than the height difference between the bottom of the primary groove and the bottom of the secondary groove.

Preferably, a filter screen is arranged at the bottom of the secondary groove and fixed at the bottom of the secondary groove through a bolt.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses set up the second grade groove into the cross section and upwards set up a plurality of apertures for the gradual progressively bigger uncovered structure and on the both sides wall of uncovered structure, the liquid of first grade inslot flows into the second grade groove, and second grade inslot liquid increases when setting for the height of aperture, and the liquid of second grade inslot flows out from a plurality of apertures and falls into the tower, and like this, impurity in the liquid will sink into the tank bottom of second grade groove, can not fall into the tower, can effectively filter out the impurity in the liquid.

Drawings

Fig. 1 is a top view of the present invention according to an embodiment;

figure 2 is a schematic cross-sectional view of a secondary trough of the present invention according to an embodiment;

figure 3 is a top view of a secondary trough of the present invention, according to an embodiment.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, the utility model discloses a slot type liquid distributor for the packed tower in the chemical industry equipment, including first order groove 1 and second grade groove 2, first order groove 1's below is located to second grade groove 2, first order groove 1's tank bottom is equipped with through-hole 5, first order groove 1 cavity communicates with each other with second grade groove 2 cavity, second order groove 2 is fixed on crossbeam 3, first order groove 1 is fixed on second order groove 2, second order groove 2 is the ascending uncovered structure of cross section upwards progressively, the both sides wall 4 of uncovered structure is equipped with a plurality of apertures 7.

In a specific implementation, the number of the primary grooves 1 is two, and the number of the secondary grooves 2 is multiple.

Specifically, the secondary groove 2 is welded and fixed on the cross beam 3, and the primary groove 1 is fixed on the secondary groove 2 through a bracket. The two ends of the cross beam 3 are provided with mounting frames 6, and the mounting frames 6 are used for being mounted on the tower wall of the packed tower.

In specific implementation, a through hole 5 is arranged at the bottom of the primary groove 1, and the cavity of the primary groove 1 is communicated with the cavity of the secondary groove 2 through the through hole 5. Each primary groove 1 intersects with the secondary groove 2, namely the groove bottom of the primary groove 1 at the position where each primary groove 1 intersects with the secondary groove 2 is provided with the through hole 5. The liquid in the primary tank 1 is divided and flows into each secondary tank 2 through the through hole 5.

In order to better retain impurities in the liquid at the bottom of the secondary tank 2, in the specific implementation, the small holes 7 are arranged at the middle upper parts of the two side walls 4, so that the liquid flowing out of the primary tank 1 can be precipitated in the secondary tank 2 for a period of time and then overflows through the small holes 7, and the impurities in the liquid can be effectively prevented from flowing into the tower through the small holes 7 again.

In specific implementation, as shown in fig. 2, the cross section of the secondary groove 2 is trapezoidal, the cross section is gradually increased upwards, and the inclination angles of the two side walls 4 of the secondary groove 2 are between 30 ° and 60 °, so that the liquid flowing through a single secondary groove 2 falls into the tower to cover a larger area when flowing out through the small hole 7, that is, the number of the secondary grooves 2 is reduced on the premise of ensuring uniform flow of the liquid, and the processing complexity is reduced.

In order to make the liquid falling into the tower through the small holes 7 more uniformly distributed, in this embodiment, the small holes 7 are arranged in a staggered manner on the two side walls 4 to form a grid, and each small hole 7 is located at the intersection point of the grid. As shown in fig. 3, the intersection point of the grid in the figure is the position of the small hole 7, and the grid in the figure is only for illustration and does not represent actual implementation. This arrangement allows more uniform coverage of the liquid as it passes through the apertures 7 and falls into the column without empty spots being left free of liquid.

Specifically, the groove bottom width of the primary groove 1 is smaller than that of the secondary groove 2. Such an arrangement can prevent liquid from splashing when the liquid flows from the primary tank 1 into the secondary tank 2.

Specifically, the height from the small holes 7 arranged on the two side walls 4 to the bottom of the secondary groove 2 is greater than the height difference between the bottom of the primary groove 1 and the bottom of the secondary groove 2.

In specific implementation, a filter screen is arranged at the bottom of the secondary groove 2 and is fixed at the bottom of the groove through a bolt. During the shutdown maintenance of the packed tower, the filter screen can be detached for cleaning by rotating the bolt, and liquid impurities covered on the filter screen are removed.

The utility model discloses set up secondary tank 2 into the cross section and upwards set up a plurality of apertures 7 for progressively bigger uncovered structure and on the both sides wall 4 of uncovered structure, liquid in the primary tank 1 flows into secondary tank 2, when secondary tank 2 interior liquid increases to the height that is set for aperture 7, liquid in the secondary tank 2 flows out from a plurality of apertures 7 and falls into the tower, and like this, the tank bottom of secondary tank 2 will be sunk to impurity in the liquid, can not fall into the tower, can effectively filter out the impurity in the liquid.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A trough type liquid distributor for a packed tower comprises a primary trough and a secondary trough, wherein the secondary trough is arranged below the primary trough, a through hole is formed in the bottom of the primary trough, a primary trough cavity is communicated with a secondary trough cavity, the secondary trough is fixed on a cross beam, and the primary trough is fixed on the secondary trough; the small holes are formed in the middle upper parts of the two side walls; the cross section of the secondary groove is trapezoidal, the cross section of the secondary groove is gradually increased upwards, and the inclination angles of the two side walls of the secondary groove are 30-60 degrees.

2. The trough liquid distributor for a packed tower of claim 1, wherein the plurality of small holes are arranged in a staggered pattern on both sidewalls in a grid pattern, each small hole being located at an intersection point of the grid pattern.

3. The trough liquid distributor for a packed column of claim 1, wherein the primary trough has a trough bottom width less than a trough bottom width of the secondary trough.

4. The trough liquid distributor for a packed column of claim 1, wherein the apertures provided in the two side walls are at a greater height from the bottom of the secondary trough than the difference in height between the bottom of the primary and secondary troughs.

5. The trough liquid distributor for a packed tower of claim 1, wherein the bottom of the secondary trough is provided with a filter screen, the filter screen being fixed to the bottom of the trough by bolts.