SU951056A2

SU951056A2 - Film-type heat mass exchange

Info

Publication number: SU951056A2
Application number: SU803224553A
Authority: SU
Inventors: Анатолий Аврумович Шехтман; Михаил Самуилович Гофман; Валерий Аркадьевич Болитэр; Иосиф Григорьевич Бляхер
Original assignee: Предприятие П/Я А-7125
Priority date: 1980-12-29
Filing date: 1980-12-29
Publication date: 1982-08-15

Description

Изобретение относится к тепломас— сообменным аппаратам и может быть использовано в химической и смежных с ней отраслях промышленности.The invention relates to heat and oil - exchange apparatus and can be used in chemical and related industries.

Эффективность работы тепломассообменных аппаратов пленочного типа во многом определяется.качеством работы распределительных устройстй, формирующих жидкостную пленку на теплообменной поверхности.The efficiency of the film-type heat and mass transfer apparatus is largely determined by the quality of the distribution devices that form the liquid film on the heat exchange surface.

По основному авт. св. № 615942 известен тепломассообменный аппарат пленочного типа, включающий корпус с устройствами для подвода и отвода фаз, вертикальные перегородки и установленные между ними распределители, выполненные из двух пересекающихся пластин, образующих элементы V-образной формы,· размещенные с зазором к вертикальным перегородкам, причем пластины снабжены эластичными полосками, закрепленными на их поверхностях [1].According to the main author. St. No. 615942 known film-type heat and mass transfer apparatus, comprising a housing with devices for supplying and removing phases, vertical partitions and distributors installed between them, made of two intersecting plates forming V-shaped elements, · placed with a gap to the vertical partitions, and the plates are provided elastic strips fixed on their surfaces [1].

Однако данная конструкция в' условиях промышленной эксплуатации характеризуется недостаточной равномерностью распределения жидкости по периметру вертикальных перегородок, вызванной неравномерным истечением жидкости по длине трубы при изменении расхода жидкости.However, this design in industrial conditions is characterized by insufficient uniformity of the distribution of fluid along the perimeter of the vertical partitions, caused by uneven outflow of fluid along the length of the pipe with a change in fluid flow.

Цель изобретения - повышение равномерности образования пленки по всей ширине вертикальных перегородок.The purpose of the invention is to increase the uniformity of film formation across the entire width of the vertical partitions.

Указанная цель достигается тем, что тепломассообменный аппарат пленочного типа содержит дополнительные вертикальные перегородки, расположенные перпендикулярно основным по их концам и жестко связанные с торцами распределителей.This goal is achieved by the fact that the film-type heat and mass transfer apparatus contains additional vertical partitions located perpendicular to the main ones at their ends and rigidly connected to the ends of the distributors.

При этом дополнительные перегородки могут быть выведены по высоте за пределы распределителей.In this case, additional partitions can be displayed in height outside the valves.

На фиг. 1 изображен предлагаемый ₍тепломассообменный аппарат пленочного типа; на фиг. 2 - разрез А-А на фиг. 1; на фиг. 3 - разрез Б-Б на фиг. 2.In FIG. 1 shows the proposed ₍ heat and mass transfer apparatus of the film type; in Fig. 2 - section aa in Fig. 1; in Fig. 3 - section bb in Fig. 2.

Тепломассообменный аппарат содержит корпус 1 с устройствами для подвода 2 и 3 и отвода 4 и 5 фаз, вертикальные перегородки 6 и установленные между Ними распределители 7, выполненные из двух пересекающихся пластин, образующих элементы V-образной формы, размещенные с зазором к вертикальным перегородкам’6, причем пластины снабжены эластичными полосками 8, закреп3The heat and mass transfer apparatus contains a housing 1 with devices for supplying 2 and 3 and for removing 4 and 5 phases, vertical partitions 6 and distributors 7 installed between them, made of two intersecting plates forming V-shaped elements placed with a gap to the vertical partitions'6 moreover, the plates are equipped with elastic strips 8, secured

Таким образом, повышается равномерность образования пленки, что повышает эффективность тепломассообмен ного аппарата в целом.Thus, the uniformity of film formation increases, which increases the efficiency of the heat and mass transfer apparatus as a whole.

ленными на их поверхностях. Кроме того, между вертикальными перегородками 6 установлены дополнительные вертикальные перегородки 9, расположен.ные перпендикулярно перегородкам 6 по их концам и жестко связанные с д торцами распределителей 7. Дополнительные перегородки 9 выведены по выг ’соте за пределы распределителей ,7.flax on their surfaces. In addition, between the vertical partitions 6, additional vertical partitions 9 are installed, located perpendicular to the partitions 6 at their ends and rigidly connected to the ends of the distributors 7. The additional partitions 9 are taken out of profit from the distributors, 7.

Аппарат работает следующим образом.The device operates as follows.

Из устройства 2 для подвода фаз fg жидкость переливается через верхние кромки вертикальных перегородок 6 и стекает по их внутренней поверхности пленкой в устройство 4. Из устройства 3 для подвода фаз жид- . кость стекает пленкой по наружной ¹³поверхности перегородок 6 в устройство 5. Из устройств 4 и 5 жидкости выводятся из аппарата.From the device 2 for the supply of phases fg, the liquid is poured through the upper edges of the vertical partitions 6 and flows along the inner surface of the film into the device 4. From the device 3 for the supply of the phases liquid. the bone flows down the film on the outer ¹³ surface of the partitions 6 into the device 5. From devices 4 and 5, fluids are removed from the apparatus.

Наличие дополнительных перегоро- „ док 9 позволяет создать равномерное ^0 распределение жидкости по ширине основной перегородки 6 в результате создания столба жидкости одного уровня по всему зазору между перегородкой 6 и распределителем 7. 25The presence of additional partition 9 allows you to create a uniform ^ 0 distribution of fluid across the width of the main partition 6 as a result of creating a column of fluid of the same level over the entire gap between the partition 6 and distributor 7. 25

Claims

The invention relates to heat and mass exchange apparatus. It can be used in the chemical and related industries. The efficiency of operation of heat and mass transfer apparatus of film type is largely determined by the quality of the operation of distribution devices that form a liquid film on a heat exchange surface. According to the main author. St. No. 615942 is well known for a film-type heat and mass exchange apparatus, comprising a housing with devices for supplying and removing phases, vertical partitions and distributors installed between them, made of two intersecting plates forming V-shaped elements, placed with a gap to the vertical partitions. the plates are provided with elastic strips attached to their surfaces 1J. However, this design under conditions of washed operation is characterized by a lack of uniform distribution of the fluid around the perimeter of the vertical partitions, caused by the uneven flow of fluid along the length of the pipe when the flow rate of the fluid changes. The purpose of the invention is to increase the uniformity of film formation across the entire width of vertical partitions. The above objective is achieved in that the film-type heat and mass transfer apparatus contains additional vertical partitions located perpendicular to the main at their ends and rigidly connected to the ends of the distributors. At the same time additional partitions can be displayed in height beyond the limits of the distributors. FIG. 1 shows the proposed heat and mass transfer apparatus of the film type; in fig. 2 is a sectional view in FIG. one; in fig. 3 shows a section BB in FIG. 2. Heat and mass transfer apparatus includes a housing 1 with devices for feeding 2 and 3 and withdrawing 4 and 5 phases, vertical partitions 6 and distributors 7 installed between them, made of two intersecting plates forming V-shaped elements placed with a gap to the vertical partitions 6 The plates are provided with elastic strips 8 attached to their surfaces. In addition, additional vertical partitions 9 are installed between the vertical partitions 6, located perpendicular to the partitions b at their ends and rigidly connected to the ends of the distributors 7. The additional partitions 9 are elevated beyond the limits of the distributors, 7. The device operates as follows: From the device 2 for supplying phases, the liquid overflows through the upper edges of the vertical partitions 6 and flows along their inner surface with the film into device 4. From the device 3 for supplying phases, the liquid flows down the film along the outer surface of the partitions b into the device 5. the devices 4 and 5 of the liquid are removed from the apparatus. The presence of additional partitions 9 makes it possible to create a uniform distribution of liquid across the width of the main partition b as a result of creating a liquid column of the same level throughout the gap between the partition b and the distributor 7. Thus, the uniformity of film formation increases, which increases the efficiency of the heat and mass transfer apparatus as a whole. The invention of the heat and mass transfer apparatus of the film type according to ed. St. 615942, differing in the fact that, in order to increase the uniformity of film formation across the entire width of the vertical partitions, the apparatus contains additional vertical partitions that are perpendicular to the main along their ends and rigidly connected to the ends of the distributors.

2. The apparatus according to claim 1, is distinguished by the fact that the additional partitions are derived in height beyond the limits of the distributors. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 615942, cl. B 01 D 3/28, 1975.

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