CN217367193U - Plate-type rectifying tower for chemical industry - Google Patents

Abstract

The utility model discloses a plate-type rectifying tower for chemical industry, including the rectifying tower main part, the inside fixed mounting of rectifying tower main part has the column plate, the column plate is two sets of, and two sets of column plates are located the lower part of rectifying tower main part and the upper portion of rectifying tower main part respectively, the one end fixed mounting of column plate has the overflow weir, the inside of rectifying tower main part is fixed mounting still has the guide plate, the top fixed mounting of column plate has multiunit gas lift mechanism. The utility model discloses the gas lift pipe in its structure of gas lift mechanism is gaseous main ascending channel, and gas gets into the gas lift intraductally back, through the reposition of redundant personnel of multiunit air duct, forms multichannel air current, and the rethread through-hole is discharged, by the diffusion by a wide margin during air current discharge, increase substantially with liquid contact scope, and, when the air current passes through the through-hole and discharges, the discharge position is close to the top of column plate, lie in the minimum of the liquid layer of column plate top accumulation promptly, increase the motion stroke of air current in liquid, improve double-phase mass transfer efficiency.

Description

Plate-type rectifying tower for chemical industry

Technical Field

The utility model relates to a chemical industry field, in particular to plate-type rectifying tower is used in chemical industry.

Background

The rectifying tower is a tower-type gas-liquid contact device for rectifying. By utilizing the property that each component in the mixture has different volatility, namely the vapor pressure of each component is different at the same temperature, the light component (low-boiling-point substance) in the liquid phase is transferred into the gas phase, and the heavy component (high-boiling-point substance) in the gas phase is transferred into the liquid phase, thereby realizing the purpose of separation. A tray column is one type of rectification column and consists of a generally cylindrical shell and a number of trays arranged horizontally therein at regular intervals. When the plate tower normally works, liquid passes through each layer of tower plate from top to bottom under the action of gravity and is discharged from the bottom of the tower; the gas is driven by pressure difference, and passes through all layers of tower plates from bottom to top through the openings uniformly distributed on the tower plates, and then is discharged from the top of the tower, and every tower plate is filled with a certain amount of liquid, and when the gas passes through the liquid layer on the plate, the two phases are contacted to make mass transfer.

The existing plate tower has certain disadvantages when in use, in the plate tower structure, a tower plate ascending pipe is matched with a bubble cap to form a gas ascending channel, a gap is reserved between the bubble cap and the ascending pipe, gas is contacted with liquid accumulated above the tower plate through the gap, so that the mass transfer is carried out by two-phase contact, but the contact range is small, the movement stroke of the gas in the liquid after the gas is discharged from the gap is short, the two-phase mass transfer efficiency is influenced, in addition, the tower plate does not have heating capacity, after the gas ascends, because the temperature difference exists between the gas and the tower plate, the condensation phenomenon of the gas is easily caused after the gas is contacted with the tower plate, and the mass transfer and heat transfer efficiency is influenced to a certain extent.

SUMMERY OF THE UTILITY MODEL

The main object of the utility model is to provide a plate-type rectifying tower for chemical industry can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a plate-type rectifying tower for chemical industry, includes the rectifying tower main part, the inside fixed mounting of rectifying tower main part has the column plate, the column plate is two sets of, and two sets of column plates are located the lower part of rectifying tower main part and the upper portion of rectifying tower main part respectively, the one end fixed mounting of column plate has the overflow weir, the inside of rectifying tower main part still fixed mounting has the guide plate, the guide plate sets up between two sets of column plates, the top fixed mounting of column plate has multiunit gas lift mechanism.

Preferably, the gas lifting mechanism consists of a gas lifting pipe and a gas guide pipe, the tower plate is provided with gas holes, the gas lifting pipe is fixedly arranged at the gas holes, the bottom end of the gas lifting pipe is opened, and the top end of the gas lifting pipe is closed.

Preferably, one end of the air duct is fixedly connected with the top end of the air lift tube, the air duct is communicated with the interior of the air lift tube, and the air duct is circularly arranged by taking the air lift tube as the center.

Preferably, the air duct is of an L-shaped structure, the vertical part of the air duct is fixed with the outer side wall of the air rising pipe, and the horizontal straight part of the air duct is provided with a through hole.

Preferably, the through hole is formed in the bottom of the transverse and straight part of the air guide pipe, and a space is reserved between the transverse and straight part of the air guide pipe and the top of the tower plate.

Preferably, the bottom of the tower plate is provided with an installation plate, the installation position of the installation plate is staggered with the opening position of the air hole, and the bottom of the installation plate is fixedly provided with a fin.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. this plate-type rectifying column for chemical industry through being provided with multiunit gas lift mechanism, the gas lift pipe among its gas lift mechanism is gaseous main ascending channel, and gas forms multichannel air current through multiunit air duct reposition of redundant personnel after getting into in the gas lift pipe, and rethread through-hole discharges, is diffused by a wide margin when the air current discharges, increases substantially with liquid contact range. And when the air current passes through the through-hole and discharges, the discharge position is close to the top of column plate, is located the minimum of the liquid layer of gathering above the column plate promptly, increases the motion stroke of air current in liquid, improves two-phase mass transfer efficiency.

2. Through setting up mounting panel and fin, the mounting panel cooperatees with the fin, can further improve heat-conduction efficiency for column plate programming rate, at the rectification in-process, can spend gas this stage of condensation in the inside appearance of rectifying column main part fast.

The utility model has the advantages of simple integral structure, reasonable design, convenient operation and use effect superior to that of the traditional plate-type rectifying tower.

Drawings

Fig. 1 is a schematic structural diagram of the plate-type rectifying tower for chemical engineering.

Fig. 2 is a partially enlarged view of a in fig. 1.

Fig. 3 is a top view of the gas lifting mechanism in the plate-type rectifying tower for chemical engineering.

Fig. 4 is a schematic structural diagram of the gas-guide tube in the plate-type rectifying tower for chemical engineering.

In the figure: 1. a rectifying column main body; 2. a column plate; 3. an overflow weir; 4. a baffle; 5. a gas lift pipe; 6. an air duct; 7. mounting a plate; 8. a fin; 9. and a through hole.

Detailed Description

In order to make the technical means, creation features, achievement purposes and effects of the present invention easy to be known to those skilled in the art, the present invention will be further explained with reference to the following embodiments.

As shown in fig. 1-4, for the utility model discloses an embodiment of high-efficient rectifying column for chemical industry, including rectifying column main part 1, rectifying column main part 1's inside fixed mounting has two sets of column plates 2, and two sets of column plates 2 are located the latter half of rectifying column main part 1 and the first half of rectifying column main part 1 respectively, the edge fixed mounting of column plate 2 has overflow weir 3, rectifying column main part 1's inside still fixed mounting has guide plate 4, guide plate 4 sets up between two sets of column plates, make on the column plate 2 of the first half column plate 2 overflow outflow can arrive the column plate 2 of the latter half smoothly, the top fixed mounting of column plate 2 has multiunit gas lift mechanism.

Furthermore, the gas lift mechanism is composed of a gas lift pipe 5 and a gas guide pipe 6, the tower plate 2 is provided with gas holes, the gas lift pipe 5 is fixedly arranged at the gas holes, the bottom end of the gas lift pipe 5 is opened, and the top end of the gas lift pipe 5 is closed, so that the gas lift pipe 5 becomes a main gas lift channel.

Furthermore, one end of the air guide tube 6 is fixedly connected with the top end of the air lifting tube 5, the air guide tube 6 is communicated with the inside of the air lifting tube 5, the number of the air guide tubes 6 is a plurality of groups, and the air guide tubes 6 of the plurality of groups are circularly and dispersedly arranged by taking the air lifting tube 5 as the center, so that the air can be divided.

Further, the air duct 6 is L type structure and divide into horizontal straight part and vertical portion, and vertical portion in the air duct 6 structure is fixed through the outside edge of welding with the gas lift pipe 5, and through-hole 9 has been seted up to horizontal straight part department in the air duct 6 structure, and gas back in getting into the gas lift pipe 5, through the reposition of redundant personnel of multiunit air duct 6, forms multichannel air current, and rethread through-hole 9 discharges, is diffused on a large scale during air current discharge, increases substantially with liquid contact scope, improves double-phase mass transfer efficiency.

Further, the through hole 9 is opened in the bottom of the horizontal straight part in the structure of the air duct 6, and a space is reserved between the horizontal straight part in the structure of the air duct 6 and the top of the tower plate 2, and the design of the space can avoid the blockage when the gas is discharged through the through hole 9, and when the gas flow is discharged through the through hole 9, the discharge position is close to the top of the tower plate 2.

Further, the bottom fixed mounting of column plate 2 has mounting panel 7, and the mounted position of mounting panel 7 staggers with the position of seting up of gas pocket, and the bottom fixed mounting of mounting panel 7 has fin 8, and mounting panel 7 cooperatees with fin 8, can improve heat conduction efficiency for column plate 2 programming rate can spend gas this stage of condensation in the inside appearance of rectifying column main part 1 fast at the rectification in-process.

To sum up, the high-efficiency rectifying tower for chemical engineering provided by the utility model has the advantages that in the using process, after gas enters the gas rising pipe 5, the gas is divided by the plurality of groups of gas guide pipes 6 to form a plurality of gas flows, and then the gas flows are discharged through the through holes 9, the gas flows are diffused in a large range when being discharged, the contact range with liquid is greatly increased, and the two-phase mass transfer efficiency is improved; mounting panel 7 and fin 8 cooperate, can improve heat-conduction efficiency for the rate of rise of temperature of column plate 2, at the rectification in-process, can spend gas this stage of condensation in 1 inside appearance of rectifying column fast, it is comparatively practical.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the preferred embodiments of the present invention are described in the above-described embodiments and the description, and that various changes and modifications may be made without departing from the spirit and scope of the invention, which should be construed as falling within the scope of the invention as claimed. The protection scope of the present invention is subject to the content of the claims.

Claims (6)

1. The utility model provides a plate-type rectifying tower for chemical industry, includes rectifying tower main part (1), its characterized in that: the inside fixed mounting of rectifying column main part (1) has column plate (2), column plate (2) are two sets of, and two sets of column plate (2) are located the lower part of rectifying column main part (1) and the upper portion of rectifying column main part (1) respectively, the one end fixed mounting of column plate (2) has overflow weir (3), the inside of rectifying column main part (1) is fixed mounting still has guide plate (4), guide plate (4) set up between two sets of column plates, the top fixed mounting of column plate (2) has multiunit to rise gas mechanism.

2. The plate-type rectification column for chemical engineering as claimed in claim 1, wherein: the gas lifting mechanism is composed of a gas lifting pipe (5) and a gas guide pipe (6), the tower plate (2) is provided with a gas hole, the gas lifting pipe (5) is fixedly arranged at the gas hole, the bottom end of the gas lifting pipe (5) is opened, and the top end of the gas lifting pipe (5) is closed.

3. The plate-type rectification column for chemical engineering as claimed in claim 2, wherein: one end of the air duct (6) is fixedly connected with the top end of the air lift pipe (5), the air duct (6) is communicated with the interior of the air lift pipe (5), and the air duct (6) is circularly arranged by taking the air lift pipe (5) as the center.

4. The plate-type rectification tower for chemical engineering as claimed in claim 3, wherein: the air duct (6) is of an L-shaped structure, the vertical part of the air duct (6) is fixed with the outer side wall of the air rising pipe (5), and the horizontal and straight part of the air duct (6) is provided with a through hole (9).

5. The plate-type rectification tower for chemical engineering as claimed in claim 4, wherein: the through hole (9) is arranged at the bottom of the horizontal straight part of the air duct (6), and a space is reserved between the horizontal straight part of the air duct (6) and the top of the tower plate (2).

6. The plate-type rectification column for chemical engineering as claimed in claim 1 or 2, wherein: the bottom of the tower plate (2) is provided with a mounting plate (7), the mounting position of the mounting plate (7) is staggered with the opening position of the air hole, and the bottom of the mounting plate (7) is fixedly provided with fins (8).

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