SU1333356A1 - Contact device for heat-mass-exchange apparatus - Google Patents

Abstract

The invention relates to contact devices for the implementation of heat and mass transfer processes and can be used in the chemical, petrochemical, energy sectors of the industry. The aim of the invention is to reduce the hydraulic resistance and increase the hydrodynamic stability of operation in the anti-flow mode. The contact device contains a contact plate in the form of an inverted truncated cone 1, fixed by a ring 2 between the flanges 3 of the housing 4 of the heat and mass transfer apparatus. Above the truncated cone 1 of the plate is installed double cone bump 5, rigidly attached by means of the kerchiefs to the truncated cone 1 of the plate. The outer surface of the truncated cone 1 ton of the valve and the outer surface of the lower cone of the bump 5 form an annular channel channel designed to pass through it in a countercurrent of gas and liquid. To reduce the hydraulic resistance of the contact device and to intensify the heat and mass transfer, the lower cone of the double-cone bump 5, located inside the truncated cone 1 of the tray, is made with an apex angle of 80-130. In addition, to increase the hydrodynamic stability of the contact device in the rotating eye mode, the ratio of the area difference between the larger base of the truncated cone 1 plate and the base of the cones of the double cone bump 5 to the area of the larger base of the truncated cone 1 plate is 0.4-0.6, and the area ratio of the smaller and the larger bases of the truncated cone 1 of the dish are 0.25-0.45. 2il. with O) 00 00 00 00 SP O) ri.G

Description

The invention relates to contact devices for the process of: the melting of heat and mass transfer processes in gas (vapor) - liquid systems and can be used in heat and mass transfer devices in chemical petrochemical and energy sectors.

The purpose of the invention is to reduce the hydraulic resistance, and to increase the hydrodynamic stability of the work in countercurrent mode,

Figure 1, has schematically depicted (the proposed contact device has a longitudinal section; FIG. 2 shows the same top view.

The device contains a contact plate in the form of an inverted truncated cone 15 fixed by a ring 2 between the flanks 3 of the housing 4 of the heat and mass transfer apparatus. Above the truncated cone 1 of the contact plate, coaxially with respect to the hole in the cone 1 of the plate, there is a double-cone bump 5, rigidly attached by means of gussets 6 to the truncated cone 1 of the plate. Nile-blue cone biconical baffle 5 is made with an angle at the top of 80-130,

The inner surface of the truncated cone 1 of the tray and the outer surface of the lower cone of the double-cone bump 5 form a channel of a hollow profile. The diameter of the larger base of the truncated cone t is plateau- and equal to the internal diameter of the heat and mass transfer apparatus.

The ratio of the area difference between the larger base of the truncated cone 1 plate and the base of the cones of the double-cone bump 5 to the area of the larger base of the truncated cone 1 plate is 0.4-0., B, and the ratio of the areas of the smaller and larger bases of the truncated cone 1 plate is 0, 25 -0.45

The device works as follows.

The liquid flows from above from the overlying contact device to the upper cone of the double-cone bump 5, and then into the channel 7 formed by the inner surface of the truncated cone 1 of the dish and the outer

five

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the surface of the lower cone biconical baffle 5,

The gas flow (steam) flows countercurrently to the moving fluid through the smaller base of the truncated plate cone 1 into the contact device, where its velocity increases, then the gas passes through channel 7, where it comes in contact with gas-emulsion in the gas emulsion mode. As the gas velocity decreases, the nature of the interaction of gas and liquid changes and at the exit from the contact device enters the film, when the gas penetrates the annular film of liquid flowing from the previous contact device to the surface of the upper cone of the double cone baffle 5, then the gas (vapor) flows in the adjacent contact device or evacuated from the heat and mass transfer apparatus and the liquid enters the underlying contact device or in the 5 collector at the bottom of the heat transfer apparatus, in the area between the outer hydrochloric frustoconical surface tarel- ki 1 and the inner wall of the housing 4 comes teplomassoobmennyh apparatus Separadi chastid liquid entrained with the gas nilselezhaschego contact device. The separation is carried out by changing the direction of the gas flow.

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Claims (1)

The formula of the invention The contact device for heat and mass transfer apparatus comprising a contact plate in the form of an overturned truncated cone with a biconical baffle, secured rigidly and coaxially to the holes in the cone plates, characterized TeMs that, in order to reduce flow resistance and increase the hydrodynamic stability of operation in a countercurrent mode, the lower cone the bump is made with an angle at 0 five the apex is 80-1ZO, and the ratio of the area difference between the larger base of the truncated plate cone and the base of the baffle cones to the area, the qi of the larger base of the truncated plate cone is 0.4-0s6, and the ratio of the areas of the smaller and larger bases of the truncated plate cone is 0.25 -0.45. . Editor E. Sligan Compiled by S. Baranova Tehred I.Popovich Proofreader A. Ilyin 3863/6 Circulation 656 Subscription VNIIPI USSR State Committee by. Inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., d, 4/5 Production and printing company, Uzhgorod, st. Project, 4 Fi &. 2