CN203436845U - Float valve tower gas-liquid mass transfer device - Google Patents

Abstract

The utility model discloses a float valve tower gas-liquid mass transfer device which comprises a float valve tower body, wherein a plurality of float valves (7) are uniformly distributed on a valve tray (10); the end part of one side of the valve tray is connected with the lower end of one side of a side plate (6), the upper end of the other side of the side plate is connected with one side of an impurity stockpile plate (5), and the other side of the impurity stockpile plate is connected with a shell (8); a filter tank (9) is formed in the upper part of the impurity stockpile plate between the shell and an upper extension plate (1) arranged at the upper end of the side plate; the end part of the other side of the valve tray is connected with one side surface in the middle of an overflow plate (3), and a gap is formed between the other side of the overflow plate and the inner wall of the shell; an upper inward arc (2) facing the valve tray is arranged at the upper end of the overflow plate, and a lower outward arc (4) facing the gap is arranged at the lower end of the overflow plate. According to the utility model, as the upper inward arc and the lower outward arc are arranged at the upper end and the lower end of the overflow plate respectively, appearance of bubbles and entrainment is effectively overcome.

Description

A kind of gas-liquid mass transfer device of valve tower

[technical field]

The utility model relates to a kind of valve tower, especially relates to a kind of gas-liquid mass transfer device of valve tower.

[background technology]

Board-like valve tower be a class for the classification contact mass transfer equipment of gas-liquid or liquid liquid system, by cylindrical-shaped tower and at a certain distance the some column plates of horizontal device in tower form.Be widely used in rectifying and absorption, some type " as sieve-plate tower " also, for extraction, also can be used as reactor for liquid phase course of reaction.During operation, " take gas-liquid systems as example ", liquid, under Action of Gravity Field, flows through each layer of column plate from top to bottom successively, at the bottom of tower, discharges; Gas, under pressure differential promotes, from bottom to top successively through each layer of column plate, is discharged to tower top.The liquid layer that is keeping certain depth on every block of column plate, gas is distributed in liquid layer and is gone by column plate, carries out phase border contact mass transfer.

In the industrial production such as oil refining, chemical industry, light industry and medicine, the process that mass-and heat-transfer is carried out in gas, liquid or liquid, the direct contact of liquid two-phase is a lot, and as rectifying, absorption, extraction etc., these processes are all to complete in certain equipment.Due to the mutual main generation of process medium is the transmission of quality, so also by the equipment of realizing these processes mass transfer apparatus, these equipment are all the cylindrical vessels of vertically installing from the appearance, ratio of height to diameter is larger, shape is as " tower ", therefore be called traditionally valve tower or tower.

Valve tower is that gas, liquid or liquid, liquid two-phase are carried out fully contact and created good condition, makes two-phase have the area of enough times of contact, separated space and mass-and heat-transfer, thereby reaches the object that between phase border, quality and heat are transmitted, and realizes technological requirement.So the performance of tower has great impact to aspects such as the product quality of whole device, production capacity, the norm quota of consumption and environmental protection.

The structure of valve tower is: skirt is fixed on the ground, in skirt one side, the outlet of still liquid, inspection opening are set, skirt top is valve tower housing, in valve tower upper end, gas vent is set, when gas vent top is installation and repairing, transport the davit of tower internals, valve tower housing top arranges phegma entrance, the rectifying section tower tray of certain altitude is set in the valve tower housing of next-door neighbour phegma entrance bottom, stripping section tower tray " is also named: packing layer ", described rectifying section tower tray, stripping section tower tray is platy structure, at rectifying section tower tray, on stripping section tower tray, be uniformly distributed some apertures, on aperture, install and can be subject to the up float valve of air-flow, at rectifying section tower tray, stripping section tower tray place is also provided with manufacture, installation and repairing is safeguarded set manhole, feed liquid is film-form from the liquor inlet of tower body along filling surface and flows downward, gas is continuous phase by valve tower lower housing portion gas access and flows from bottom to top, liquid phase counter current contacting is also carried out mass transport process.The component of gas phase and liquid phase is continuous variation along tower height.

As from the foregoing, the tower tray of existing valve tower arranges in the dirty process of feed liquid, and feed liquid self is mixed is with some impurity, and namely feed liquid top exists mist, and bottom exists impurity to remove, and these impurity can affect the normal up plug of even seeing of float valve, the feed liquid that enters housing by liquor inlet in use flows in the lautertuns between housing and side plate from top to bottom successively, the impurity comprising in feed liquid accumulates on the base plate of lautertuns bottom, then enter on the tower tray between overflow plate lower end, top and the overflow plate upper end of bottom, when the feed liquid flowing into is when last layer tower tray height surpasses overflow plate upper end, the feed liquid exceeding just can become waterfall shape overflowing liquid, the interval of described waterfall shape overflowing liquid between overflow plate upper end and housing flows into downwards in the described lautertuns of lower one deck tower tray one side, this process makes the feed liquid in overflow plate impact filtration groove, a lot of bubbles and mist have virtually been increased, the elimination of bubble and mist needs the regular hour, the liquid phase counter current contacting that is unfavorable for next link.

[summary of the invention]

For in order to overcome the deficiency in background technology, the purpose of this utility model is to provide a kind of gas-liquid mass transfer device of valve tower, the utility model arranges respectively top to arc and bottom to outer arcuate by the two ends up and down at overflow plate, has effectively overcome the appearance of bubble and mist.

The utility model solves the technical scheme that its technical problem adopts:

A gas-liquid mass transfer device, comprise valve tower body, the rectifying section tower tray in valve tower housing 8 and stripping section tower tray, staggered at the rectifying section tower tray of housing and stripping section tower tray place be provided with a plurality of tower trays from top to bottom, described tower tray comprises overflow plate, impurity accumulates plate, valve tray and float valve, the rear and front end of valve tray is connected with inner walls, on valve tray, be evenly distributed with a plurality of float valves, the lower end of one side end connecting lateral plate one side of valve tray, the upper end of side plate opposite side is connected with the side that impurity accumulates plate, the opposite side that described impurity accumulates plate is connected with housing, the upper extension board arranging in side plate upper end and the impurity between housing accumulate plate top and form lautertuns, the end side of valve tray is connected with one side, the middle part of overflow plate, between the opposite side of overflow plate and inner walls, leave spacing, the upper end of overflow plate is provided with top towards valve tray to arc, the lower end of overflow plate is provided with bottom towards described spacing to outer arcuate, the described lautertuns top of the described overflow plate of last layer tower tray in lower one deck tower tray, wherein descends the corresponding last layer of the upper end level top of one deck overflow plate to the middle part of arc.

Owing to having adopted technique scheme, the beneficial effects of the utility model are;

The gas-liquid mass transfer device of valve tower described in the utility model, the utility model arranges respectively top to arc and bottom to outer arcuate by the two ends up and down at overflow plate, top wherein makes the feed liquid of overflowing slowly enter overflow plate outside to arc, by the bottom of overflow plate, to outer arcuate, eliminates part mist; The utility model has overcome the appearance of bubble and mist effectively.

[accompanying drawing explanation]

Fig. 1 is structural representation of the present utility model;

In the drawings: 1, upper extension board; 2, top is to arc; 3, overflow plate; 4, bottom is to outer arcuate; 5, impurity accumulates plate; 6, side plate; 7, float valve; 8, housing; 9, lautertuns; 10, valve tray.

[specific embodiment]

Can more detailed explanation the utility model by the following examples, the utility model is not limited to the combination of embodiment below; Open the purpose of this utility model is intended to protect all changes and improvements within the scope of the utility model, comprises the version that is equal to replacement;

The gas-liquid mass transfer device of a kind of valve tower described in 1, comprises valve tower body by reference to the accompanying drawings, and the rectifying section tower tray in valve tower housing 8 and stripping section tower tray from top to bottom interlock and are provided with a plurality of tower trays at rectifying section tower tray and the stripping section tower tray place of housing 8, described tower tray comprises overflow plate 3, impurity accumulates plate 5, valve tray 10 and float valve 7, the rear and front end of valve tray 10 is connected with housing 8 inwalls, on valve tray 10, be evenly distributed with a plurality of float valves 7, the lower end of one side end connecting lateral plate 6 one sides of valve tray 10, the upper end of side plate 6 opposite sides is connected with the side that impurity accumulates plate 5, the opposite side that described impurity accumulates plate 5 is connected with housing 8, the upper extension board 1 arranging in side plate 6 upper ends and the impurity between housing 8 accumulate plate 5 tops and form lautertuns 9, the end side of valve tray 10 is connected with one side, middle part of overflow plate 3, between the opposite side of overflow plate 3 and housing 8 inwalls, leave spacing, the upper end of overflow plate 3 is provided with top towards valve tray 10 to arc 2, the lower end of overflow plate 3 is provided with bottom towards described spacing to outer arcuate 4, described lautertuns 9 tops of the described overflow plate 3 of last layer tower tray in lower one deck tower tray, wherein descend the corresponding last layer of the upper end level top of one deck overflow plate 3 to the middle part of arc 2.

The column plate gas-liquid mass transfer of implementing valve tower described in the utility model improve structure " it should be noted that, the utility model mass-transfer progress follows existing design formerly, only structurally carried out local change, relate to prior art part the utility model not in too much explanation, those skilled in the art, on the basis in conjunction with prior art, just can understand the utility model more ", the utility model use procedure is as follows, the feed liquid that is entered housing 8 by liquor inlet flows into tower tray from top to bottom successively, when the height of the feed liquid flowing on last layer tower tray valve tray 10 surpasses overflow plate 3 upper end, the feed liquid exceeding forms the interval of overflowing liquid between overflow plate 3 upper ends and housing 8 and trickles downwards, because the top of overflow plate 3 is to arc 2 effects, feed liquid has been obtained the speed of trickling comparatively slowly, during trickling, the relative prior art of foam is less, when bottom that feed liquid comes downwards to overflow plate 3 is during to outer arcuate 4, be subject to bottom to the effect of outer arcuate 4, feed liquid slowly imports in the feed liquid of lautertuns 9, this process is the less foam that occurs also.

The utility model does not describe part in detail for prior art.

Claims (1)

1. a gas-liquid mass transfer device for valve tower, comprises valve tower body, and the rectifying section tower tray in valve tower housing (8) and stripping section tower tray from top to bottom interlock and are provided with a plurality of tower trays at rectifying section tower tray and the stripping section tower tray place of housing (8), described tower tray comprises overflow plate (3), impurity accumulates plate (5), valve tray (10) and float valve (7), the rear and front end of valve tray (10) is connected with housing (8) inwall, on valve tray (10), be evenly distributed with a plurality of float valves (7), the lower end of one side end connecting lateral plate (6) one sides of valve tray (10), the upper end of side plate (6) opposite side is connected with the side that impurity accumulates plate (5), the opposite side that described impurity accumulates plate (5) is connected with housing (8), the upper extension board (1) arranging in side plate (6) upper end and the impurity between housing (8) accumulate plate (5) top and form lautertuns (9), the end side of valve tray (10) is connected with one side, middle part of overflow plate (3), between the opposite side of overflow plate (3) and housing (8) inwall, leave spacing, it is characterized in that: the upper end of overflow plate (3) is provided with top towards valve tray (10) to arc (2), the lower end of overflow plate (3) is provided with bottom towards described spacing to outer arcuate (4), described lautertuns (9) top of the described overflow plate (3) of last layer tower tray in lower one deck tower tray, wherein descend the corresponding last layer of the upper end level top of one deck overflow plate (3) to the middle part of arc (2).

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