Distributing-contacting device

FIELD: chemical industry; petrochemical industry; heat-and-power engineering and other industries.

SUBSTANCE: the invention is pertaining to distributing-contacting devices for the mass-exchange devices and may be used in chemical industry, petrochemical industry, heat-and-power engineering and other branches of industry. The distributing-contacting device contains a distribution plate supplied with a screen with holes, overflow branch-pipes, overflow devices, deflecting shields, perforated truncated cones. The perforated truncated cones are made out of a sheet of no more than 1 mm thick with shutter-type splits of a width -"S" equal to 0.3-0.5 mm, and with a step not exceeding the thickness of the sheet and with an inclination in direction of the liquid motion at an angle α equal to 30-45°, the ratio of the length "1" to its width "S" is from 13 up to 25, a direction of the shutter channels to the horizontal axis of coordinates is at an angle β is equal to 30-45° and the overflow branch-pipes. At that for the packed columns on the ends of the drain branch-pipes at the calculated space intervals there are spray washers, and for plate-type columns the liquid from the drain branch pipes is fed onto an underlying sheet of a plate through a hydraulic lock. The presented distributing-contacting device ensures a high efficiency of the mass-exchange parameters in a wide range of a stable operation of packed columns and in the plate column apparatuses.

EFFECT: the invention ensures a high efficiency of the mass-exchange parameters in a wide range of a stable operation of the packed columns and the plate column apparatuses.

3 cl, 3 dwg

 

The invention relates to the distribution of the contact devices for mass transfer apparatuses in chemical engineering, petrochemical, power and other industries.

Known mine collector-distributor including canvas with holes and overflow pipes with an air visors, 15, 16 [1].

The disadvantage of this design is the lack of contact between liquid and gas, leading to lower utilization of the device.

Closest to the claimed object is a distribution device, comprising a distribution plate provided with a canvas with holes, overflow pipes, fender visors, overflow devices and perforated truncated cones [2].

The disadvantage of this switchgear is no possibility of using it in a mass transfer separation columns.

The invention is directed to creating an effective distribution-contact device for mass transfer separation columns.

This is achieved by the fact that in the distribution of the contact device, comprising a distribution plate provided with a canvas with holes, overflow pipe, overflow devices and perforated truncated cones, perforated truncated to the Noosa made from a sheet of a thickness not exceeding 1 mm, with louvered slits of width S, 0.3-0.5 mm, in increments of not more than the thickness of the sheet, with an inclination in the direction of flow of fluid at an angle αequal to 30-45°, length 1 in its width S from 13 to 25, the direction louver channels to the horizontal axis at an angle βequal to 30-45°and the drain pipe attached to the small diameter of the truncated cone, the output of which the calculated distance is set spray washers, when used in Packed columns. In tray columns the liquid from the drain pipes on the underlying fabric is fed through the hydraulic lock.

1 shows a General view of the distribution of the contact device in the Packed column; figure 2 shows a General view of the distribution of the contact device in tray column; figure 3 shows a fragment of the sheet with louvered slits.

The distribution of the contact device is a distribution plate provided with a canvas with holes 1, overflow pipes 2, overflow devices 3, fender visors 4, perforated truncated cone 5, the spout 6, spray washers 7 for Packed columns, the valves 8 for plate columns, sheet 9 with louvered slits 10 width S, 0.3-0.5 mm, in increments of not more than the thickness of the sheet, with naclonal side of the fluid at an angle α equal to 30-45°, length 1 in its width S from 13 to 25, the direction louver channels 11 to the horizontal axis at an angle βequal to 30-45°.

Distribution-pin device operates as follows.

The liquid collected on the canvas 1 via overflow device 3 serves in perforated truncated cone 5. Flowing streams of liquid are distributed on the inner surface of perforated cones 5 in the form of a thin film and is gradually twisted due to the multiple helical lines formed louvered channels 11, enter the drain pipe 6. At the exit of the nozzle the flow of liquid hits in spray washers 7 and evenly distributed over the surface of the cross-section of the nozzle. In tray column the liquid flow from the drain pipe 6 serves on the underlying plate through the water seal 8, which is formed by the liquid level on the plate and drain pipe 6. The gas passes through the louvered slits 10 perforated truncated cones 5, barbthroat swirling through the thin liquid film and goes up. The use of perforated truncated cones sheet 9 with louvered slits 10 width S, 0.3-0.5 mm, in increments of not more than the thickness of the sheet, with an inclination in the direction of flow of fluid at an angle αequal to 30-45°, length 1 to the width of S 13 is about 25, direction louver channels 11 to the horizontal axis at an angle βequal to 30-45°ensures the absence of failure of the fluid and a high rate of mass transfer even at low speeds the gas stream.

The advantage of the proposed design raspredelitelno-pin devices due to the high efficiency of mass transfer performance in a wide range of stable operation, therefore it can be widely used in nozzle and plate column devices.

The list of references.

1. The prospectus of the company SULZER No. 22 13.06.04 "Separation columns for distillation and absorption", prepared by the editorial Board of the journal "Chemical and petroleum engineering", Moscow, 1993, p.15, 16.

2. Patent RU No. 2127147, class 6 B 01 J 8/04, 8/00, published 10.03.99, bull. No. 7.

1. The distribution of the contact unit comprising a distribution plate provided with a canvas with holes, overflow pipe, overflow devices, impact canopies, perforated truncated cones, characterized in that the perforated truncated cones made from a sheet of a thickness not exceeding 1 mm with louvered slits of width S, 0.3-0.5 mm, in increments of not more than the thickness of the sheet, with an inclination in the direction of flow of fluid at an angle αequal to 30-45°, the ratio of length l to eserine S from 13 to 25, direction louver channels to the horizontal axis at an angle βequal to 30-45°and the drain pipes.

2. The distribution of the contact device according to claim 1, characterized in that at the ends of the drain pipes on the estimated distance of the spray washer.

3. The distribution of the contact device according to claim 1, characterized in that the fluid from the drain pipes on the lower leaf plates supplied through hydraulic lock.



 

Same patents:

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SUBSTANCE: the invention is dealt with the field of chemical industry and intended for fine separation of gas from a liquid at reconstruction of separators and filter-separators of the absorptive and rectifying columns. The multi-cartridge ring-type separating nozzle contains: a cover, a filtering unit, a device of water separation, an inlet connection pipe connected with the filtering unit by a pin, gas-distributing discs fixed to the pin. The filtering unit is made in the form of mesh cartridges mounted one on another. At that the internal surfaces of the mesh cartridges form a gas-distributing collector. The device of water separation is made in the form of the overflowing pipes located in the cartridges and mounted under them the drain pans with the axial apertures. Each mesh cartridge is supplied with a baffle made in the form of a plain disk with an axial aperture and a ring-type bead along the disc perimeter. Each mesh is formed by simultaneous winding of two parallel bands of the mesh, one of which is made out of a flat mesh, and the other - out of a corrugated mesh. On the side of its cylindrical internal surface a mesh cartridge is supplied with a cylindrical perforated shell. At that the first layers of the mesh band are fixed to the perforated shell by metal staples or welded to the perforated shell. At least two external layers of each mesh band are fixed by metal staples. The number of the mesh cartridges makes 6. The overflowing pipes are installed uniformly around the nozzle on a circumference, diameter of which makes from 0.85 up to 0.92 of the external diameter of the mesh cartridge and the diameter of a flow area of each overflowing pipe makes from 0.038 up to 0.05 of the external diameter of a mesh cartridge, and the total area of apertures of the shell perforation makes from 50 up to 60 % of the area of the internal cylindrical surface of the shell. In result the invention allows to increase efficiency of separation at the expense of prevention of the separated liquid accumulation in the cartridges of the nozzle.

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2 cl, 1 dwg

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11 cl, 3 dwg, 1 ex

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12 cl, 4 dwg, 2 ex

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FIELD: petrochemical industry.

SUBSTANCE: the invention presents a plate for gases contact with liquids, containing a bubbling zone and set of downpipes with tank ports, which are distributed along the bubbling zone in such a manner, that during the column operation the liquid is delivered to these tank ports from the opposite directions. The tank port of each downpipe and the downpipe itself are supplied at least with two guiding plates, each of which has the upper end protruding over the plate and inclined towards to the incoming flow of the liquid running to the tank port of the downpipe. The offered plate provides an increase of a column throughput capacity.

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12 cl, 4 dwg, 2 ex

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