Tube bundle anti-vibration support device for kettle heat exchanger

Abstract

The invention relates to a vibration-proof supporting device for a tube bundle of a kettle type heat exchanger. The device comprises a supporting plate which is vertically arranged, a pressing plate and a supporting plate bracket, wherein the pressing plate and the supporting plate bracket are respectively connected to the top part and the bottom part of the supporting plate; a plurality of tube holes are formed in the supporting plate; the supporting plate is manufactured from nonmetal materials such as PEEK (Poly Ether Ether Ketone), PTFE (Polytetrafluoroethylene), RPTFE (reinforced Polytetrafluoroethylene) or ePTFE (expanded Polytetrafluoroethylene); the hardness of the materials of the supporting plate is less than that of the materials of a heat exchange tube to be supported; the diameter of each tube hole is 0.1 to 0.3mm more than the outside diameter of the heat exchange tube to be supported; the supporting plate and the pressing plate are fixedly interconnected through a bolt and double nuts, so are the supporting plate and the supporting plate bracket; a vertical concave groove of which an opening is upwards formed is formed in the supporting plate bracket; the lower part of the supporting plate is rightly embedded into the concave groove; the supporting plate is clamped and supported on the supporting plate bracket. With the adoption of the device, the heat exchange tube can be avoided being damaged during lining; in addition, the vibration of the tube bundle can be effectively reduced or avoided, so that the supporting effect is good.

Description

technical field [0001] The invention relates to an anti-vibration support device for tube bundles of kettle heat exchangers, which is mainly used for the anti-vibration support of tube bundles of fixed tube-sheet kettle heat exchangers in the petrochemical field, and is especially suitable for exchanging non-ferrous metals such as titanium materials in the petrochemical field. Heat pipe type kettle heat exchanger. Background technique [0002] At present, in the petrochemical industry, metal materials are generally used as the support plates of the heat exchanger tube bundles. Since the heat exchange tubes are usually metal tubes, the metal-to-metal contact is easy to cause damage to the heat exchange tubes during the tube penetration process. damage, and in order to facilitate pipe penetration, the gap between the tube hole on the support plate and the heat exchange tube is relatively large. For example, the gap recommended by the Chinese national standard GB151-2012 "Heat ...

AI Technical Summary

Problems solved by technology

[0002] At present, in the petrochemical industry, metal materials are generally used as the support plates of the heat exchanger tube bundles. Since the heat exchange tubes are usually metal tubes, the metal-to-metal contact is easy to cause damage to the heat exchange tubes during the tube penetration process. damage, and in order to facilitate pipe penetration, the gap between the tube hole on the support plate and the heat exchange tube is relatively large. For example, the gap recommended by the Chinese national standard GB151-2012 "Heat Exchanger" is 0.7mm, and the gap recommended by the American TEMA standard is 0.4-0.8mm, it is easy to cause vibration of the tube bundle, causing friction and collision between the heat exchange tube and the support plate, resulting in damage to the heat exchange tube

In the design, the distance between baffles or support plates is generally reduced to avoid vibration, but this method changes the heat transfer efficiency and fluid resistance drop of the heat exchanger, which has certain limitations in engineering use

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