Enhanced heat-exchange shell-tube heat exchanger for anti-fouling and descaling by ultrasonic wave

• Main Authors: TAN YANKUN, QIAN JIANFENG
• Format: Patent
• Language: Chinese; English
• Published: 13.03.2013
• Subjects: BLASTING; CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE ORHEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS; HEAT EXCHANGE IN GENERAL; HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT; HEATING; LIGHTING; MECHANICAL ENGINEERING; WEAPONS

The utility model discloses an enhanced heat-exchange shell-tube heat exchanger for anti-fouling and descaling by an ultrasonic wave. Municipal sewage contains large amounts of impurities such as colloids, microorganisms, algae, organic liquid droplets and microscale solid, a lot of dirt is formed on the surface of a heat exchange wall even if the impurities are filtered before entering the heat exchanger, so that the utilization efficiency of heat energy is seriously affected, and the consumption of electric energy and the like is increased. The enhanced heat-exchange shell-tube heat exchanger comprises a shell (1) with a clear water inlet (11) and a clear water outlet (12), wherein a heat exchange tube (2) is arranged inside the shell; the shell is connected with an elliptical head (13) through a tube plate (4); a blow-down valve (5) is arranged on the elliptical head; the elliptical head is connected with an ultrasonic transducer (6), and the ultrasonic transducer is connected with an ultrasonic generator