A method for assembling heat exchange tube bundles for closed cooling towers

Abstract

The invention provides an assembly method of a heat exchange tube bundle for a closed type cooling tower. The heat exchange tube bundle comprises a tube bundle frame, two tube boxes and a plurality ofheat exchange tubes. A split type supporting clamping plate is arranged between the two tube boxes, and the split type supporting clamping plate comprises a supporting base plate, a plurality of single row clamping plates and two side edge fixing plates. The plates are prepared firstly and a plurality of U-shaped grooves are formed in one sides of the single row clamping plates in a machined modebefore assembly, elastic semicircle clamping sleeves are mounted in the U-shaped grooves, then the supporting base plate is placed at the very bottom of the tube bundle frame, the two ends of a row of heat exchange tubes at the bottom layer are mounted in the two tube boxes, the single row clamping plates are mounted on the row of heat exchange tubes from the upper part to enable the elastic semicircle clamping sleeves in the U-shaped grooves to clamp the row of heat exchange tubes, the side edge fixing plates are placed on two sides of the tube bundle frame and spot welding is carried out onthe side edge fixing plates, the supporting base plate and the single row clamping plates, the rows of heat exchange tubes and the single row clamping plates are sequentially mounted from bottom to top, then the side edge fixing plates, the supporting base plate and the single row clamping plates are fixed in a full-length welding mode, and finally, the side edge fixing plates are connected withthe tube bundle frame.

Description

technical field [0001] The invention relates to the field of heat exchange devices, in particular to an assembly method for a heat exchange tube bundle of a closed cooling tower. Background technique [0002] The closed cooling tower is to place the tubular heat exchanger in the tower, and perform heat exchange and cooling through the heat exchange between the circulating air, the spray water outside the tube and the circulating water in the tube. Since the circulating water is a closed cycle in the tube, it can It ensures that the water quality is not polluted, well protects the efficient operation of the main equipment, and improves the service life. It has a wide range of applications in iron and steel metallurgy, power electronics, machining, air conditioning systems and other industries. The heat exchange tube bundle is a key component for heat exchange in a closed cooling tower. It usually includes two tube boxes, and a plurality of heat exchange tubes are installed be...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the existing heat exchange tube bundle, because the heat exchange tubes pass through the through holes on the support card, the through holes on the support card must be accurately positioned and the aperture diameter must be ensured, resulting in more difficult processing and more time-consuming processing , and all heat exchange tubes must pass through one tube box and the through holes of all supporting clamps to the other tube box in sequence during installation, which makes installation difficult, extremely inconvenient and inefficient, and easily scratches the supporting clamps The inner wall of the upper through hole affects the positioning effect of the support clamp on the heat exchange tube, and the aperture of the heat exchange tube must be precisely and controllable, which makes it difficult to spray anti-corrosion treatment on the heat exchange tube, and the heat exchange tube made of stainless steel or copper must be used , so that the material selection range of the heat exchange tube bundle is narrow and the cost is high, the invention provides a method for assembling the heat exchange tube bundle of a closed cooling tower

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