초록 ▼

A high pressure heat exchanger assembly for a compressor having a shell and tube-type design. An elongated bundle assembly is received within the shell. The bundle assembly has a plurality of elongated tubes extending generally longitudinally through the shell. The tubes are securely affixed to fixe

A high pressure heat exchanger assembly for a compressor having a shell and tube-type design. An elongated bundle assembly is received within the shell. The bundle assembly has a plurality of elongated tubes extending generally longitudinally through the shell. The tubes are securely affixed to fixed and floating tube sheet assemblies positioned at opposite ends of the shell. The fixed tube sheet assembly is securely attached to one end of the shell and the floating tube sheet assembly is allowed to float with respect to the other end of the shell. A seal between the floating tube sheet assembly and the end of the shell prevents the escape of internal fluids. Each tube sheet assembly is provided with an inner and outer tube sheet member separated by a plurality of spacers to create a vented space therebetween open to the outside atmosphere. The elongated tubes are sealingly press-fit within the inner and outer tube sheets of the fixed and floating tube sheet assemblies to provide a fixed connection therebetween. A plurality of spring devices are utilized to bias the floating tube sheet assembly towards the shell to counteract opposing internal shell pressure forces created within the shell assembly which may stress the press-fit tube-to-tube sheet connections.

대표청구항 ▼

A heat exchanger assembly for a compressor comprising: an elongated shell having first and second flanged ends, a fluid inlet and fluid outlet, said inlet and outlet providing passage of a first fluid into and out of said shell; a fixed tube sheet assembly positioned adjacent the first flanged end o

A heat exchanger assembly for a compressor comprising: an elongated shell having first and second flanged ends, a fluid inlet and fluid outlet, said inlet and outlet providing passage of a first fluid into and out of said shell; a fixed tube sheet assembly positioned adjacent the first flanged end of said shell, said fixed tube sheet assembly having a fixed inner tube sheet sealingly affixed to the first flanged end to close in the first end of the shell space and a fixed outer tube sheet spaced from the fixed inner tube sheet, the fixed inner and outer tube sheets being separated by a plurality of spacers to create a substantially open space therebetween in communication with the exterior of said heat exchanger assembly; a floating tube sheet assembly positioned adjacent the second flanged end of said shell, said floating tube sheet assembly having a floating inner tube sheet sealingly abutting the second flanged end to close in that end of the shell space and a floating outer tube sheet spaced from the floating inner tube sheet, the floating inner and outer tube sheets being separated by a plurality of spacers to create a substantially open space therebetween in communication with the exterior of said heat exchanger assembly, said floating tube sheet assembly being allowed limited longitudinal movement with respect to the second flanged end of said shell without breaking the sealed abutment between the floating inner tube sheet and said second flanged end; an elongated tube bundle assembly received within said shell, said bundle assembly having a plurality of elongated tubes extending generally longitudinally within said bundle assembly and being received through both of the inner and outer tube sheets of said fixed and floating tube sheet assemblies, each of said tubes being affixedly press-fit into the inner and outer tube sheets providing a fixed fluid-tight connection with each of the inner and outer tube sheets of said fixed and floating tube sheets, respectively; and fixed and floating header assemblies being affixed to the fixed and floating outer tube sheets, respectively, for providing passage of a second fluid to be communicated through the elongated tubes extending through said shell such that if the first fluid within the shell or the second fluid within said tubes and header assemblies leaks by the sealed connections between said tubes and the fixed and floating tube sheet assemblies, the escaping fluid will pass into the open spaces between said fixed and floating tube sheet assemblies, respectively, to be vented exteriorly of said heat exchanger assembly without the possibility of intermixing the first and second fluids within said heat exchanger assembly.