Horizontal shell-and-tube condenser

Abstract

The invention provides a horizontal shell-and-tube condenser, which is used for solving the problem that a technical measure which can reduce the thickness of a condensate liquid film outside one condensation heat exchange tube in a horizontal tube bundle and reduce the heat resistance of the condensate liquid film outside the tube is in lack nowadays. The horizontal shell-and-tube condenser comprises a shell body (1); the shell body is provided with an air inlet (2) and a liquid outlet (3); the two sides of the shell body are connected with tube plates (4); a group of heat exchange tubes (5) are mounted in the space in a shell which is formed by the shell body and the tube plates in an encircling manner; a rubber sleeve (6) is mounted outside each heat exchange tube; the rubber sleeves are connected with a push-and-pull head (8) through a connecting rod (7); the push-and-pull head is movably connected to one end of the screw rod (9); the other end of the screw rod is connected with a driven gear (10) through threads; the driven gear is engaged with a driving gear (11); the driving gear is connected with a driving motor (12); and the driving motor is connected with a timing controller (13). The horizontal shell-and-tube condenser is applied to the fields of petroleum, chemical industry, metallurgy, pharmacy, air conditioning, refrigeration, heating and the like.

Description

technical field [0001] The invention relates to a chemical machinery, in particular to a horizontal shell and tube condenser. Background technique [0002] Horizontal shell and tube condensers are widely used in petroleum, chemical industry, metallurgy, pharmaceutical, air conditioning, refrigeration and heating and other fields. 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 in the upper row of tubes drips down in the horizontal shell-and-tube condenser, which causes the liquid film of the lower row of heat exchange tubes to thicken, resulting in a decreas...

AI Technical Summary

Problems solved by technology

However, this application mainly relies on the condensate flowing from the heat exchange tube to the drain plate under the action of gravity and surface tension, and flows into the liquid guide, and finally the liquid in the liquid guide is guided to both ends of the heat exchange tube. Method Only when the liquid film of the heat exchange tube increases to a certain thickness can it naturally flow to the drainage plate. When the thickness of the liquid film of the heat exchange tube does not reach the critical point of drainage, the heat exchange efficiency is low. This horizontal type with liquid guide Shell and tube condensers cannot solve

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