SU1155833A2 - Heat-mass-exchange apparatus - Google Patents

Abstract

HEAT AND MASS-EXCHANGE DEVICE at author. St. No. 1041822, characterized in that, in order to intensify heat exchange, it is provided with a fixed reflecting plate made in the form of a spiral surface, the axis of which coincides with the axis of the body, bent in the same direction as the film-carrying plates, and placed inside the body between its side wall and film-carrying plates, on the side surface of the reflecting plate are inclined slots in which protruding toward the housing walls are arranged widened downward serrated plates, film-bearing plates They are filled with edges jagged along the gas outlet, and the protrusions at the gas outlet are placed in the outlet nozzle, and the flow area of the channels formed by the adjacent film-carrying plates is increasing along the gas flow. (L ate SP 00 oo oo Figure 1

Description

The invention relates to air conditioning technology.

The purpose of the invention is to intensify heat transfer.

FIG. 1 shows a heat and mass transfer apparatus, a general view; in fig. 2 shows section A-A in FIG. one; in fig. 3 - a portion of the reflecting plate; in fig. 4 is a section BB in FIG. 3

The apparatus contains a cochlear body 1 with inlet and outlet nozzles 2, 3 and stationary film-carrying plates 4 placed in the body, made curved and forming channels 5 for the passage of gas in the form of a multiple spiral, coaxial body 1 of the device, and also with devices 6 , 7 and 8 for the supply, distribution and removal of gas and liquid. The device for gas distribution is made in the form of a conical propellant 9, which is bent on the surface in the same direction as the film-carrying plates 4 and guides 10. The film-carrying plates 4 are provided on the concave side of the gas-output sections with protrusions 11. plate 12, made in the form of a spiral surface, the axis of which coincides with the axis of the housing 1, is bent in the same direction as the film-carrying plates 4. The reflecting plate 12 is placed between the side wall of the housing and the film suschimi plates 4. On the lateral surface of the reflecting plate 12 are inclined slots 13 in which are installed protruding towards the wall of the housing 1 downwardly expandable Plenkonesuschie serrated plate 14. The plates 4 are formed with jagged gas exit edges. The protrusions 11 at the gas outlet are placed in the outlet pipe 3. The passage section of the channels 5 formed by the adjacent film-carrying plates 4 is made increasing in the direction of the gas movement.

The device works as follows.

The liquid enters through the arrangement 6 for supplying liquid to the device 7 for distributing the liquid and from there it flows onto the film-carrying plates 4. The walls of the plates 4 liquid in the form of a film flows into the lower part of the housing I, from where it is discharged through the branch pipe 3.

In channels 5, under the action of a gas stream, a film is displaced in the direction of gas movement. Due to the resulting centrifugal force during the movement of the 5 gas flow through the channels 5, liquid drops are disrupted and transferred from the convex walls of the channels to the concave ones, which increases the contact interaction of the media. In this case, part of the droplets when the gas leaves the channels 5 falls on the plane of the non-movable reflecting plate 12. The main part of the liquid in the form of a film hits the dentate edges of the film-carrying plates 4, breaking off which drops as a result of

5, centrifugal force, under the action of a gas stream sprays, which also increases the contact interaction of media. In order to maintain the sprayed droplets of moisture in the exploded state for a longer time, the film-carrying plates 4 are made loosening downwards, as a result of which the channel between the film-carrying plates 4 and the reflecting plate 12 in the lower part is smaller than in the upper part.

When meeting with a fixed reflecting plate 12, the water in the form of small droplets in the stream accumulates water on the reflecting plate and forms a film on it. Under the action of the gas flow, the liquid film is displaced and, the passage through the inclined slots 13, falls on the inclined plates 14.

Q Next, the film is lifted onto the plates, the drops are dropped from their jagged edges and sprayed, which increases the soaring time of the crushed fluid particles.

In the channel between the reflective plate 12 and the housing 1 there is a settling

5 soaring crushed particles of moisture on the inner surface of the cochlear-shaped heat exchanger body due to an increase in centrifugal force with increasing distance from the center of the body when moving to the outlet nozzle 3. The inner surface of the case, being wet, does not suppress the displacement of the liquid film moving to the outlet nozzle 3. In front of the outlet nozzle 3, the fluid is retained by the protrusions 11, settling, is collected in

5 of the lower part of the housing 1 and is discharged by the nozzle 3.

The advantage of the proposed device is an increase in the efficiency of heat exchange between water and air at elevated speeds of air movement.

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Claims (1)

HEAT AND MASS EXCHANGE DEVICE by ed. St. No. 1041822, characterized in that, in order to intensify heat transfer, it is equipped with a stationary reflective plate made in the form of a spiral surface, the axis of which coincides with the axis of the housing, curved in the same direction as the film-bearing plates, and placed inside the housing between its side inclined slots are made on the side surface of the reflecting plate, in which serrated plates extending downwardly extending downward are mounted on the side surface of the reflecting plate, film-bearing plates are made with jagged edges on the gas outlet, and the protrusions at the gas outlet are located in the outlet pipe, while the passage section of the channels formed by adjacent film-bearing plates made increasing along the gas. (L SL SP QO GO FO Φί / 2.1>