SU1369740A1 - Jet-directed plate - Google Patents

Abstract

The invention relates to devices for contacting gas (vapor) in a liquid and can be used in mass transfer apparatus for. processes of absorption, rectification, etc. in the gas, petroleum, petrochemical industries. The purpose of the invention is to expand the range of effective plate operation by uniformly distributing the gas-liquid layer gradient over the plate web and increasing the throughput of the plate over the liquid. The jet-guided plate includes a sheet with slotted elements, the edges of which are bent upwards, a separation device containing contactors-baffles attached to the support sheet and made in the form of petals tilted to the open part of each slotted element of the plate web. The separation unit is installed above the sheet plates and over the drain pocket. The support of the separating device has a slope from the drain pocket to the receiving pocket and from the side of the receiving pocket is provided with a bar and an overflow device connecting the support web with the drain pocket of the dish cloth. The contactors-chippers, located above the drain pocket, are lowered into the last and are located in it in a staggered order. 1 hp f-ly. 2 Il. with S (L

Description

The invention relates to devices for contacting gas (vapor) and a liquid and can be used on mass transfer devices for processes of absorption, rectification, etc. in gas, petroleum, petrochemical industry.

The purpose of the invention is to expand the range of effective plate operation by uniformly distributing the gradient of the gas-liquid layer over the plate web and increasing the capacity of the plate in liquid and gas.

FIG. 1 shows a jet-directed plate, general view; in fig. 2 - location of the separating device above the web of the plate, perspective view.

The jet-directed plate is a web 1 with notched elements 2 made in the form of scales. A separating device 4 with a gap q from the receiving pocket 5 is installed above the blade 1 of the plate and above the drain pocket 3, containing contactors-baffles 6 attached to the support sheet 7. The latter is installed with a slope from the drain pocket 3 to the receiving pocket 5. The angle of slope set in the range of 15 to 40 °.

The contactors-bumpers 6 are in the form of elongated lobes. Moreover, the contactors-baffles 6, located above the blade 1 of the plate, are made with a length increasing from the receiving pocket 5 to the drain pocket 3, and are inclined to the open part of each prosecting element 2.

The contactors-bumpers 6, located above the discharge pocket 3, are lowered into it and arranged in a staggered order. From the side of the receiving pocket 5, the support 7 is provided with a strap 8 and an overflow device 9 connecting the web of the support 7 with the drain pocket 3. The overflow device 9 is designed as a groove and is placed on the internal CTejfke 10 of the device.

Bearing 7 is a continuous web on which holes 11 are formed above each contactor-baffle 6, repeating in shape the contactors-baffling. And all the holes are made in the same size. The width of the hole 11 is equal to the width of the cutting elements 2, and the length of the hole

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is 0.6-0.7 steps between the slit-type members 2. The holes 11 are equipped with flares 12. Perforations 13 can be made on the solid support sheet.

The support 7 can also be made in the form of a grid to which the petals of the contactors-chippers are attached. The fastening of the petals of the contactors-chippers 6 to the support can be fixed or can be rotated. The holes 11 of the contactors-baffles 6 located above the drain pocket 3, 5 are provided with guide elements 14.

Streamline plate works as follows.

The liquid comes from the upper plate through the receiving pocket 5. The vapor (gas) coming out from under each slotted element 2 hits the baffle contactor 6 of the separation device 4, crushes and mixes with the liquid moving along the sheet 1 of the plate, forms a layer of intensely moving jets and drops. In this case, the direction of movement of the jets is constantly changing under the action of the newly fragmented gas flows coming from the nipple elements 2 that follow along the liquid movement.

By setting the separation device 4 with a gap a from the receiving pocket 5, the gas flow is redistributed over the web of the tray relative to the distribution of the liquid flow over the tray, which contributes to the early entry of the tray into the free running mode, expanding its range of efficient operation.

The contactors-baffles 6 provide for the separation of liquid droplets formed on the web 1 of the tray. The foamed gas-liquid layer entering the drain pocket 3 hits the contactors-baffles 6 lowered into the drain pocket, as a result of which the liquid is degassed intensively and the gas (vapor) through the holes 11 in support 7, i.e. along the aerodynamic shadow zones, it is removed to the overlying canvas. At the same time, part of the foamed pro-contacting liquid falling onto the support sheet 7 of the separation device 4 from the drain pocket 3, as well as the liquid falling from the sheet 1 of the tray, due to drift drains to the strip 8, prevents

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getting it on the plate and then through the overflow device 9 enters the drain pocket 3.

The collar 12 provides the most complete removal of fluid from the support 7 into the drain pocket 3. With the passage of gas (steam) through the openings of the support 7, additional separation of the liquid carried by the gas (steam) flow occurs. The foamed liquid falling onto the support web from the drain pocket is separated and guided by the elements 14 towards the overflow device 9.

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ki on the liquid due to the provision of directional draining of the liquid into the drain pocket, intensive separation of aerated liquid and free removal of gas (vapor) from the drain pocket along the aerodynamic shadow zones formed by contactors-bump stops.

Claims (2)

1. A jet-directed plate for mass transfer apparatus, including a web with notched elements. As a result of this, the protrusion of the edges of which is bent upwards increases, the seapass capacity of the dish decreases interbag carryover, since the main part of the liquid trapped in the interdishplate space is diverted from it into the drain pocket. In addition, the gradient of the gas-liquid layer is aligned with the web of the tray, which allows to expand the range of the effect: of that tray. The advantage of the proposed jet-25 uniform distribution of the gradient The directional plate compared to the prototype consists in expanding the range of the plate's efficient operation, since as a result of ensuring removal of the contacting liquid, the separation support that settled on the canvas, the separation device, in the drain pocket, and not on the plate cloth as in the prototype, the gas flow rate ( a couple). In addition, the proposed plate design allows for a uniform distribution of the gas-liquid layer over the plate’s web in a wide range of its operation, increasing the throughput of the plates device containing contactors-bumpers attached to the support web and made in the form of petals inclined to the open part of each slotted element of the web of the plate, receiving and drain pockets, which in order to expand the effective range of the plate due to gas-liquid layer along the web of the plate and increase the capacity of the plate in liquid and gas (steam), part of the separating device is installed above the drain pocket, the support has a slope from the drain pocket to the receiver and from the receiving pocket is equipped with a plate and overflow device connecting the support to the drain pocket linen plates. 2. Plate according to claim 1, characterized in that the contactors-bumpers located in the place of drain pockets, are lowered into it in chess order. and set the fig .1 13 7 IG ten