Alternate absorbing core of staggered horizontal tube bundles and ripple screen mesh layer

Abstract

The invention discloses an alternate absorbing core of staggered horizontal tube bundles and ripple screen mesh layers. The ripple screen mesh layers are inserted among horizontal tube bundles of the staggered horizontal tube bundles; the cross-section shapes of the ripple screen mesh layers are in a trapezoidal wave shape, and the adjacent ripple screen mesh layers are symmetrical relative to the clamped horizontal tube bundles; the upper edge and lower edge of the ripple screen mesh layer trapezoidal wave are respectively arranged on the lower part of an upper-layer heat transferring tube and the upper part of a lower-layer heat transferring tube of the ripple screen mesh layer trapezoidal wave; the folding line direction of the ripple screen mesh layer trapezoidal wave and the direction of the heat transferring tubes are the same; the ripple pitch of the trapezoidal wave is equal to the horizontal tube center distance of each horizontal tube bundle; a formed liquid membrane orderly passes through an alternate caloric transmitting structure of the horizontal tube bundles and the ripple screen mesh layers. The alternate absorbing core has the advantages that the absorbing area of the absorbing core is enlarged, furthermore the solution mixing is promoted, and the solution surface is kept continuing relatively strong in absorbing driving power, so that en effect that a reinforced solution absorbs cryogen steam is realized.

Description

technical field [0001] The invention relates to an absorbent core body, in particular to an alternate absorbent core body with forked horizontal tube bundles and corrugated silk screen layers. Background technique [0002] The absorber is the key equipment of absorption refrigeration. The traditional tubular absorber has a low heat and mass transfer coefficient due to insufficient mass transfer and absorption area, which seriously restricts the performance of the absorption system. Lithium bromide absorption-type heat-mass separation transfer system is prone to crystallization due to overcooling, but in the packing-type absorption device, because there is no cooling measure, the temperature rises rapidly after the solution absorbs the latent heat of vaporization of the steam, and the solution is quickly saturated, and the absorption drive The strength drops rapidly, so the absorption enhancement effect is not significant. The current scheme of inserting wire mesh packing b...

AI Technical Summary

Problems solved by technology

The traditional tubular absorber has a low heat and mass transfer coefficient due to insufficient mass transfer and absorption area, which seriously restricts the performance of the absorption system

Lithium bromide absorption-type heat-mass separation transfer system is prone to crystallization due to overcooling, but in the packing-type absorption device, because there is no cooling measure, the temperature rises rapidly after the solution absorbs the latent heat of vaporization of the steam, and the solution is quickly saturated, and the absorption drive The power drops rapidly, so the absorption enhancement effect is not significant

The current scheme of inserting wire mesh packing between the tube rows of the horizontal tube bundle has not been thoroughly studied and rationally designed for the shape of the wire mesh packing. The loss of the solution splashing is relatively large, and some of the wire mesh packing is not wetted by the solution. Guide the liquid film of the solution to make full use of the area of ​​the screen filler to realize the alternate heat and mass transfer of the liquid film on the tube and the screen

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