Class / Patent application number | Description | Number of patent applications / Date published |
165069000 | RESILIENT VIBRATION DAMPER ISOLATING EXCHANGER ELEMENT | 16 |
20090277606 | HEAT EXCHANGER SUPPORT AND METHOD OF ASSEMBLING A HEAT EXCHANGER - A heat exchanger that includes a heat exchanger core including a plurality of stacked tubes defining a fluid flow path, a housing substantially surrounding the heat exchanger core, and an elastomeric member positioned between the heat exchanger housing and the heat exchanger core and deformable to allow movement of one of the heat exchanger core and the housing relative to an other of the heat exchanger core and the housing in at least two substantially perpendicular directions. | 11-12-2009 |
20110067837 | HEAT EXCHANGER - A heat exchanger includes a bundle of tubes, which can be inserted into a tubular housing. Exhaust gas can flow through the tubes. A coolant duct can be arranged between the tubes. The bundle of tubes can have at least one grid-like securing structure which supports the bundle in the housing. The behavior of the heat exchanger with respect to vibrations is affected by outwardly curved metallic springs attached to the bundle of tubes which may be deformed in the opposite direction to the insertion direction of the bundle into the housing. The spring force is directed against the housing in order to dampen vibrations. The heat exchanger can also include an elastic device for permitting a change in length caused by temperature changes. | 03-24-2011 |
20110253341 | AUXILIARY SUPPORTS FOR HEAT EXCHANGER TUBES - A method of manufacturing or modifying a tube set for a bundled tube heat exchanger, and corresponding apparatus, is provided. An elongated support member is attached to baffles in a heat exchanger. The elongated support member has opposed contoured tube-contacting surfaces and face contact surfaces. The opposed contoured tube-contacting surfaces receive, in close-fitting relation, the exterior surface of a portion of adjacent rows of tubes passing through baffle apertures. The elongated support member is positioned so that its face contact surface is adjacent to a face surface of the baffle, and the opposed contoured tube-contacting surfaces are adjacent to the exterior surfaces of the plurality of tubes. The elongated support member is attached, e.g., by welding, to the face surface of the baffle, in a manner that does not interfere with the operation of the heat exchanger. | 10-20-2011 |
20110277957 | DAMPING ELEMENT FOR HEAT DISSIPATING FAN - A damping element for a heat dissipating fan is made of a silica gel and includes a body member and a foot column extended from a first side surface of the body member. The foot column has a base portion extended from the body member, a column portion extended from the base portion and a head portion disposed at a free end of the foot column. A diameter of the base portion is larger than that of the column portion and a diameter of the head portion is larger than that of the column portion. The first side surface may include bumps. The damping element connects with the heat dissipating fan and the foot column is inserted into a hole of a computer casing. The bumps are contacted with the casing for absorbing the vibration of the fan and eliminating noise. | 11-17-2011 |
20120247727 | STEAM GENERATOR TUBE LANE FLOW BUFFER - A tube and shell steam generator in which a series of rods having a diameter substantially equal to that of the heat exchange tubing in the tube bundle are placed on either side of the tube lane to buffer the flow in the tube lane from the heat exchange tubes to attenuate turbulent forces on the first several rows of heat exchange tubes adjacent to the tube lane. | 10-04-2012 |
20130340971 | VIBRATION SUPPRESSION DEVICE OF HEAT TRANSFER TUBE AND STEAM GENERATOR - There is provided a vibration suppression device of a heat transfer tube including: a cord member that has flexibility and is disposed in a heat transfer tube; and a plurality of sleeves that are mounted outside the cord member with a predetermined first gap and are disposed on an inner face of the heat transfer tube with a predetermined second gap. | 12-26-2013 |
20140014294 | U-Bend Tube Compression/Distortion Stabilization System (CDSS) - This patent discloses and claims a system for providing in-plane stabilization to the tubes of a heat exchanger. The system increases the friction between the tubes and the existing anti-vibration bars by pressing the tube bundle together in the out-of-plane direction. The invention involves a structure that develops forces by reacting either off the inner diameter of the tube bundle wrapper, or off an assembled stressor hoop, which is self-supporting on top of the tube bundle, or involves purposely deforming connecting hoops to bias the anti-vibration bars in a way that the tube U-bend is no longer planar. It imposes a controlled clamping and/or deforming force on the tube bundle, either by direct contact with the outer tubes or indirectly via the existing anti-vibration bar structure. | 01-16-2014 |
20140014295 | STEAM GENERATOR - A steam generator includes: an annular member ( | 01-16-2014 |
20140034269 | HEAT EXCHANGER, GAP EXPANSION JIG OF HEAT TRANSFER TUBE, AND METHOD OF DISPOSING VIBRATION SUPPRESSION MEMBER - The heat exchanger includes: a plurality of heat transfer tubes which is arranged and provided with predetermined gaps; and a plurality of second vibration suppression members | 02-06-2014 |
20140041832 | DEVICE FOR REDUCING THE VIBRATIONS OF A TUBE BUNDLE OF A HEAT EXCHANGER INSIDE ITS SHELL - The present invention relates to a device for reducing the vibrations of a tube bundle of a heat exchanger inside its shell, wherein this device allows a secure and quick insertion after the bundle has been manufactured. This easy insertion after manufacturing the bundle allows the high temperatures to which the bundle is subjected for the attachment by means of brazing to not affect the properties of the device, particularly the elasticity achieved by means of tempering, for example. | 02-13-2014 |
20140054005 | Viscous Damping Stabilizer - The inventive viscous damping tube stabilizer includes modules or capsules containing a viscous material. Adjacent capsules are linked end to end by a flexible cable, allowing the device o pass through curves such as the U-bend regions of steam generator tubes. The weight of the entire assembly will keep it essentially connected to the tube inner diameter such that any tube vibration is transmitted to the stabilizer. The viscous material may only partially fill the capsules such that even under small motion the material can slip and slide past each other, and/or bump into walls, each microscopically absorbing some of the tube energy. By creating multiple cells inside the capsule, the capsule then have good operating characteristics no matter to what angle the individual capsule is oriented as it rests on the full U-bend. The viscous material may completely fill the capsules, which also have a perforated member positioned therein. Relative movement of the capsule and disc causes the viscous material to pass through the perforations, providing damping resistance to the movement. | 02-27-2014 |
20150027663 | Instrumented Steam Generator Anti-Vibration Bar - A steam generator anti-vibration bar (AVB) that extends across multiple rows of tubes and contains a string of sensors is disclosed and claimed. The instrumented anti-vibration bar includes a housing and cover that cooperate to enclose the sensors. The sensors capture data resulting from the fluid flow passing through the steam generator during plant operation. Exemplary sensors that may include: strain gauges to measure loads imposed on the AVBs by the tubes; temperature sensors to sample thermal-hydraulic conditions within the tube bundle; pressure and flow detectors to sample hydraulic conditions within the tube bundle; inductive coils to measure in-plane and out-of-plane motion; and accelerometers to measure AVB motions imposed by surrounding tubes. The captured data is transmitted out of the steam generator in known fashion. | 01-29-2015 |
20150083365 | STEAM GENERATOR AND METHOD OF SECURING TUBES WITHIN A STEAM GENERATOR AGAINST VIBRATION - A steam generator includes a tube bundle having a plurality of tubes, arranged in rows and columns. The first column of tubes includes a first tube having a curved center line disposed in a first plane. The second column of tubes includes a second tube having a curved center line disposed in a second plane, the second plane being parallel to and spaced a distance from the first plane. The steam generator further includes a first number of solid anti-vibration bars disposed between the first column of tubes and the second column of tubes; wherein each of the tubes has a tube outer diameter; and wherein each of the first number of anti-vibration bars has a thickness generally transverse to the first and second planes, the thickness being greater than the distance between the first and second planes minus the tube outer diameter. | 03-26-2015 |
20150129166 | Tube Support for Vibration Mitigation - A tube support in the form of a stake having at least one protrusion mounted on its longitudinal surface. The protrusion contacts adjoining tubes of a tube bundle and exerts a force tending to separate the tubes. | 05-14-2015 |
20150129167 | Heat Exchanger - A heat exchanger includes a bundle of tubes, which can be inserted into a tubular housing. Exhaust gas can flow through the tubes. A coolant duct can be arranged between the tubes. The bundle of tubes can have at least one grid-like securing structure which supports the bundle in the housing. The behavior of the heat exchanger with respect to vibrations is affected by outwardly curved metallic springs attached to the bundle of tubes which may be deformed in the opposite direction to the insertion direction of the bundle into the housing. The spring force is directed against the housing in order to dampen vibrations. The heat exchanger can also include an elastic device for permitting a change in length caused by temperature changes. | 05-14-2015 |
20160146454 | VIBRATION-INHIBITING BAR FOR A STEAM GENERATOR TUBE BUNDLE - A vibration-inhibiting bar is provided that is interposed between bends of the tubes of two adjacent banks of tubes of a U tube bundle of a steam generator and includes at least one internal element, referred to as a damping element, designed to mechanically damp the vibrations of the tubes; and at least one external element, referred to as percussion element, in contact with the damping element, the percussion element being designed to be in contact with the bends of the tubes of the bundle. | 05-26-2016 |