Condensation tube drainage device

Abstract

The utility model relates to a liquid delivery machine of the condensing pipe which is used as a liquid baffle to reduce the thickness of the condensate film outside a heat exchange pipe in a shell-and-tube heat exchanger. The condensing pipe of the prior art fails to solve the problems that the condensate drips from the upper pipe in the horizontal pipe bundle of horizontal condensation heat exchanger, which increases the thickness of the condensate film of the lower pipe and degrades the heat exchanging performance, the tube bundle effect and that the condensate converges at the bottom and increases the film thickness of the condensing pipe and the heat resistance so as to decrease the heat exchanging capacity. The utility model comprises a liquid delivery tank 1, a planar and continuous drainage plate 2 at the upper part of the liquid delivery tank 1 with a curved surface, a snap spring 3, a pin 4 and a condensing pipe 5; wherein, the delivery tank 1 and the drainage plate 2 are fixed on the condensing tube 5 by the snap spring 3 and the pin 4. The utility model can be used widely in various horizontal outside condensation heat transfer devices in the fields of petroleum, chemical industry, metallurgy, pharmacy, air-conditioning, refrigeration, heating and other fields.

Description

Technical field: [0001] The invention relates to a liquid deflector used in a shell-and-tube heat exchanger to reduce the thickness of the condensed liquid film outside the heat exchange tube. Background technique: [0002] Condensing heat exchangers are widely used in the fields of petroleum, chemical industry, metallurgy, pharmaceuticals, air conditioning, refrigeration and heating, etc. The heat exchange efficiency directly affects the industrial production cost and energy utilization efficiency, so it has always been an important research and improve objects. Since the 1970s, in order to improve the heat transfer performance of condensing heat exchangers, people have achieved a lot of fruitful results by changing the structural characteristics of the outer surface of the tube. However, these works have not solved the problem that the condensate of the upper tubes in the horizontal tube bundle of the horizontal condensing heat exchange equipment drips down, which causes ...

AI Technical Summary

Problems solved by technology

However, these works did not solve the problem that the condensate in the upper row of tubes in the horizontal tube bundle of the horizontal condensing heat exchange equipment drips down, causing the liquid film in the lower row of condensing tubes to increase, resulting in a decrease in heat transfer performance (called the tube bundle effect).

At present, when designing condensing heat exchange equipment with horizontally arranged condensing tube bundles, people can only rely on increasing the number of heat exchange tubes to compensate for the adverse effect of the tube bundle effect on heat exchange, resulting in an increase in the volume of the heat exchange equipment and an increase in manufacturing costs

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