An air cooler is a common heat exchange equipment widely used in industries such as power, chemical, refrigeration, and petrochemical. The tube bundle of the air cooler is a key component, which determines the heat exchange efficiency and service life of the air cooler.
The manufacturing of air cooler tube bundles mainly includes several aspects such as material selection, processing technology, and welding technology. Material selection is a crucial step. The air cooler tube bundle is usually made of materials such as carbon steel, stainless steel, and copper alloy, which have good corrosion resistance and thermal conductivity. When selecting materials, it is necessary to consider the properties of the medium to avoid damage to the tube bundle caused by medium corrosion. The selection of processing technology is also crucial. The air cooler tube bundle usually adopts processing techniques such as cold drawing, cutting, arcing, and cold bending to ensure the accuracy and strength of the tubes. Welding technology is the core link in the manufacturing of air cooler tube bundles. The welding process should choose appropriate welding methods and materials to ensure the quality and strength of the weld seam. The commonly used welding methods include manual arc welding, gas-shielded welding, and plasma arc welding.
- What precautions should be taken when installing the air cooler tube bundle?
When installing the tube bundle, the following precautions should be taken:
(1) When lifting the tube bundle, steel ropes should be used to hang the lifting ears and prevent damage to the fins and paint layer.
(2) Multiple tube bundles are installed on the framework, and the gap between the tube bundle and the tube bundle side beam is (6 ± 3) mm.
(3) The deviation between the centerline of the pipe bundle inlet flange and the installation reference line shall not exceed ± 3mm.
(4) When the gap between tube bundles or between tube bundles and structures is greater than 10mm, asbestos ropes should be filled or sealing plates installed to reduce leakage.
(5) When installing the inclined top air cooler tube bundle, the limit clamps on the tube bundle and the frame should be securely clamped to prevent the tube bundle from falling off.
- Why is there an inclination in the installation of the horizontal air cooler tube bundle?
The horizontal air cooler tube bundle is placed horizontally, but in order to prevent condensate from staying in the tube, the tube should be tilted at 3 ° or 1%.
