Despite the name they can actually be used for heating or for cooling…and in the petroleum industry they are typically used for the purpose of cooling. Q It is Within the concept of this invention to invert the locations of the rollers as described heretofore and place the power-operated roller to engage'the bottom surface of the beam and to pull the carriage down into contact with the beam against the action of spring-loaded rollers which engage the top bearing surface of the beam. This is in addition to any stress from high pressures from the fluids themselves. These thrust collars and the complementary bearing member 118 are designed to restrain the shaft 104 from moving laterally with respect to the beam 50. Since 1969, our company has designed, manufactured, repaired, and operated hydraulic tube bundle extractors. Since vessels are working under high pressures environment our quality control department making sure to follow all the standards and codes.
Thus the transverse pins 88 will be maintained in coaxial alignment with each other as the arms 70 and 72 are swung toward and away from the plane of symmetry of the tube bundle extractor. The apparatus 1 comprises a guide frame 7, applied onto the hoisting column 6 with suitable supports 8. This portion of the frame comprises a horizontal plate member 440 to the lower surface of which is secured two parallel side members 442 and 444 which extend transversely of the beam 58. All other trademarks not owned by us that appear on this Site are the property of their respective owners. Furthermore, cleaning of exchanger shells and components is automated, fast and risk free, and designed to focus water pressure generated to the work face.
There are very few companies who make these bundle extractors, with even fewer operating in Australia. In the initial operation of extracting a tube bundle from the shell of a heat exchanger and with the frame of the tube bundle extractor parallel to the axis of the shell, the above described adjustment to the sling augmented by the use of the hydraulic jacking cylinder 3%, described above, holds the supported portion of the tube bundle a constant distance below the longitudinal axis of the beam 50 as the tube bundle is pulled along the beam. The tubes are connected to receive a stream of process fluid and exchange the heat from the stream with another stream of cooling or heating fluid flowing through the shell. Each element 86 supports a respective transverse pin 88 upon which is pivotally mounted a clevis 90 to which is rigidly afiixed a respective connector pin 2. The free or outer end 54 of the beam, which shall be called the outboard end, is stabilized by a line 56, which is rigged to the mobile crane, separately from the crane hook and which can be adjusted to maintain the frame of the tube bundle extractor in parallel alignment with the longitudinal axis of the shell 48 prior to connecting and after disconnecting the extractor and the shell.
Onto the upper flatcar 3 of the structure 2 a conventional control unit 20 housing the controls and the drives of the apparatus 1 is located. The sling is disposed parallel to the threaded shafts 446 and 448 and displaced over the roller 462 and thence in parallel alignment with itself back across the frame and over the roller 464. The tube bundle extractor has an elongated frame, the principal member of which is a single beam 50. The aerial hydraulic tube bundle extractor is a workhorse of a machine with a simple, elegant design that revolutionized the maintenance of heat exchangers when it was introduced to the market by B. The space between the two tubes is filled with a sealing liquid.
They are also often used to carry hot tubeside fluid. A first approach of the apparatus 1 to the extraction area can be directly carried out using the tractor of the trailer 40. The threaded shaft 506 drives the carriage Sill along the beam 506 continuously the full length of the stroke required to extractor insert the tube bundle. Since the force-' 2% and the operation of the mechanismis stopped. Method and apparatus for extracting and installing heat exchanger bundles 2000-09-25 2004-05-04 Starcon International, Inc. Experienced operators ensure the optimum method selection for each application applying specialised tools, fit for purpose lances and nozzles, automated equipment, abrasives, and chemical solutions to ensure every project is completed in record time and passes inspection first time.
As its name implies, this type of heat exchanger consists of a shell a large pressure vessel with a bundle of tubes inside it. Once exchangers are on the slab, an array of automated tube and shell side hydro blast equipment may be used, as well as advanced chemical cleaning systems. A second branch conduit 2% leads from the air supply conduit 270 to a second valve 292. From the complete design of your system to the manufacture of all system elements, we fully integrate the operation of every critical unit. This new position of the carriage is at the opposite limit of the stroke of the forceexerting mechanism and when this position is attained, the air pressure automatically is removed from the cylinder 244 and a spring 248 retracts the roller to lower the upper bearing shoes of the carriage into contact with the upper bearing surface of the beam. Custom finned tubes and pipes are also available.
One end of a respective parallel motion linkage 96 is pivotally connected to the projecting portion 94 and the other end of the parallel motion linkage is pivotally connected to a corresponding latterly projecting portion 98 formed on each of the transverse members 78 and 80. Eventually, a possible bundle introduction step can be carried out in a analogous manner as to the extraction step hereto disclosed. Ordinarily, two trolley slings are provided; one to support the front portion of the tube bundle and the other to suport the rear portion. Heat energy transfer is increased by the effective fin area on the tube or pipe. Flooded, Thermosyphon, and Direct Expansion Evaporators. The shafts are connected together at one end by a chain drive 454 which cooperates with a handwheel 455 to cause the shafts to be rotated manually in synchronism.
I In this modification of the invention, the rollers supporting the carriage 5% on the beam 500, as represented by the rollers 522 and 526, are constructed and arranged to be in snug contact with the complementary bearing sur faces of the beam and to maintain this relationship to prevent binding of the carriage on the beam while the tube bundle is being pulled from or pushed into its shell. However, with stud tensioning the process is more automated and repeatable. A11 axially expandable sleeve 226 is secured between the inboard end ofsthe shaft 216 and the complementary nected to the shaft 216 by inserting one end of the bar into' a collar 230 afiixed to the inboard end of the shaft and then passing the bolt 232 through appropriate holes in the collar and in theend of the bar. The outermost tube sheet may be secured to an end flange on the shell while the remaining tube sheets are not attached to the shell but float to accommodate the changing dimensions of the tube bundle and the shell which occur with changes in temperature of the fluids to which these elements are exposed. The outer end of each connector pin 92 is threaded to receive a nut 164 which is held captive on the connector pin by a washer 166 affixed to the outermost end of the pin.