摘要:
Die Erfindung betrifft einen Wärmetauscher mit zumindest einem Außenrohr (1), einem Mittelrohr (2) und einem länglichen Innenkörper (3), wobei der Innenkörper (3) im Inneren des Mittelrohrs (2) angeordnet ist und sich über zumindest einen Teil der Länge des Mittelrohrs (2) erstreckt und das Mittelrohr (2) im Inneren des Außenrohrs (1) angeordnet ist und sich das Mittelrohr (2) über zumindest einen Teil der Länge des Außenrohrs (1) erstreckt. Aufgabe der vorliegenden Erfindung ist damit, einen Wärmetauscher bereitzustellen, der eine geringe Anfälligkeit auf Verstopfungen aufweist. Dies wird dadurch gelöst, dass zumindest in einem inneren Zwischenraum (5) zwischen Innenkörper (3) und Mittelrohr (2) oder in einem äußeren Zwischenraum (4) zwischen Mittelrohr (2) und Außenrohr (1) zumindest eine Reinigungslippe angeordnet ist, und dass das Mittelrohr (2) in Bezug zum Innenkörper (3) und/oder zum Außenrohr (1) drehbar ist.
摘要:
A scraped surface heat exchanger comprising a heat exchange surface, a rotatable shaft, said shaft having at least one mounting means, and a sweeping element wherein said sweeping element comprises, a blade having at least one aperture for engaging with the mounting means such that the sweeping element is connected to the mounting means and characterised in that when the rotatable shaft is rotating relative to the heat exchange surface the sweeping element has substantially no movement relative to the rotating shaft and said sweeping element has substantially no contact with the inner surface of the heat exchanger.
摘要:
The invention relates to a device consisting of a heat exchanger, that can be used for the heat treatment of products such as juices, pulp and other food, liquid or particulate products. Said device includes a plurality of tubes of product in which the products to be processed circulate, each of said tubes containing an element for rotating and pushing the product, said elements being provided with circular parts that support metal bars from which respective scraper elements project, said scraper elements being pushed towards the walls of the tube by springs arranged inside the metal bars, in such a way that the permanent friction of the scrapers against the inner surface of the tube ensures the perfect cleaning thereof. For particulate products, each tube includes a screw that supports the longitudinal metal bars from which the scraper elements project. The position of the bars also causes turbulences that improve the thermal behaviour of the process.
摘要:
A stove (1) provided with a heat exchanger with turbulators (13a, 13a, 13b, 13b) has a combustion chamber (2) with a heat exchanger (5) formed by communicating water chambers (6), in which a plurality of vertical flue gas pipes (8), which communicate with the combustion chamber (2), are water tightly immersed. The heat exchanger (5) is inside a covering structure (16) having a top wall (160) to which at least one turbulator (13a, 13a, 13b, 13b) is suspended in a respective vertical flue gas pipe (8). Each turbulator (13a, 13a, 13b, 13b) is configured so as to rotate and translate in the respective vertical flue gas pipes (8).
摘要:
In addition to efficiently removing residues from the inner wall of the inner tubes (20), reducing head loss and substantially improving the heat transfer coefficient, the present invention also allows obtaining different pumping flow rates for the product fluid. More particularly, the heat exchange unit (1) stands out because it comprises an elongated rotary rod (30) arranged inside at least one inner tube (20) and provided with cleaning means comprising scraping elements (40) suitable for scraping and detaching the product fluid accumulated on the inner wall of the at least one inner tube (20); and an endless spiral (50) dimensionally suitable for surrounding the rotary rod (30) longitudinally through the spaces existing between the scraping elements (40), said endless spiral (50) being suitable for displacement of the product fluid circulating through the at least one inner tube (20), generating a self-pumping effect.
摘要:
A heat exchanger has been developed with a helical insert (9) permanently mounted in a housing (2). Between the windings in the insert (9) there is formed a helical channel (20) for one heat exchange medium. The insert (9) is designed with a channel (10) for the second heat exchange medium. The heat exchanger is designed with a central tube (13) which is axially movable and rotatable. The central tube (13) is designed with scraper elements for removal of deposits in the channel (20). In one embodiment the scraper element is formed by a helical insert (15) of the same design as the insert (9). The insert (15) is designed with a channel (16) for the second heat exchange medium. In a further embodiment the central tube (13) is designed with one or more scraper arms (23) which may be liquid-cooled. Deposits are often formed on the heat transfer surfaces. A cleaning cycle is performed by means of axial movement of the insert (15) which is mounted on the cenral tube (13) towards the permanently mounted insert (9), thus causing the heat transfer surfaces to touch each other. A rotating movement is then performed, e.g. a part of a turn, while the surfaces are close to each other or in contact with each other, thus causing the deposits on the two surfaces to be rubbed or scraped off and thereby cleaning the channel (20).
摘要:
Dispositif de fixation rotative d'un élément dans un tube comprenant un fourreau conique (1), un crochet (3) et un tube tourillon (2). Le tourillon solidarise en traction le crochet et le fourreau tout en autorisant la rotation du crochet. L'ensemble est démontable et adaptable à différents diamètres de tubes. Application à la mise en place de vis d'Archimède dans les tubes d'échangeurs dé chaleur pluritubulaires, condenseur de vapeur ou autre.