Apparatus and method for manufacturing one piece flat sides extruded product
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F28F-009/02
F28F-021/08
출원번호
US-0089630
(2002-03-29)
국제출원번호
PCT/US00/11785
(2000-05-02)
국제공개번호
WO01/25712
(2001-04-12)
발명자
/ 주소
Luberda, John A.
인용정보
피인용 횟수 :
2인용 특허 :
7
초록▼
A one-piece extrusion (50) having a flat bottom portion (54) and supporting flat sides (74) is described. The one-piece extrusion (50) is particularly appropriate for use as a header for a heat exchanger in a cogeneration facility or other high pressure vessels. The header (50) is extruded out of st
A one-piece extrusion (50) having a flat bottom portion (54) and supporting flat sides (74) is described. The one-piece extrusion (50) is particularly appropriate for use as a header for a heat exchanger in a cogeneration facility or other high pressure vessels. The header (50) is extruded out of steel, stainless steel, or a steel alloy. The flat bottom portion (54) of the header (50) provides a flat surface for drilling apertures (80) and connecting tubes (56) to the header (50), eliminating the need for complicated manufacturing and attachment procedures encountered with the cylindrical headers currently used. The flat bottom portion (54) also provides more surface area for attachment of the tubes (56). The flat sides (74) of the extrusion impart structural support and integrity to the header (50) and allow a greater number of headers to be placed closer together without taking up the space required for typical cylindrical headers.
대표청구항▼
1. A heat exchanger header capable of withstanding pressures of up to 3600 psig, comprising: (a) a flat bottom portion; and (b) substantially flat sides extending from the flat bottom portion, wherein the heat exchanger header is formed from an extrusion comprising steel, providing a seamless
1. A heat exchanger header capable of withstanding pressures of up to 3600 psig, comprising: (a) a flat bottom portion; and (b) substantially flat sides extending from the flat bottom portion, wherein the heat exchanger header is formed from an extrusion comprising steel, providing a seamless and integrally formed heat exchanger header for use in a cogeneration facility. 2. The heat exchanger header of claim 1, further comprising a curved upper portion. 3. The heat exchanger header of claim 2, further comprising a structural member attached to the curved upper portion for mounting the header to a housing of the cogeneration facility. 4. The heat exchanger header of claim 1, wherein the flat bottom portion is approximately one half inch to approximately three inches thick. 5. The heat exchanger header of claim 1, wherein the flat bottom portion is approximately one half inch to approximately two and one quarter inches thick. 6. The heat exchanger header of claim 1, further comprising two inner corners that are curved and that are located on the inside of the header where the substantially flat sides extend from the flat bottom portion. 7. A method for making a heat exchanger header capable of withstanding pressures of up to 3600 psig, comprising: (a) extruding a product comprising steel in the shape of a header having a flat bottom portion and flat sides extending from the flat bottom portion, the product having two open ends; and (b) drilling a plurality of apertures into the flat bottom portion, the apertures being adapted to receive a plurality of tubes. 8. The method of claim 7, further comprising capping the two open ends of the steel product. 9. The method of claim 7, wherein tubes are secured in the apertures by welding. 10. A method for generating steam in a cogeneration facility capable of withstanding pressures of up to 3600 psig, comprising: (a) providing a cogeneration facility housing to which at least one heat exchanger unit is coupled, the heat exchanger unit comprising a one-piece extruded header with a flat bottom portion, flat sides extending from the flat bottom portion, and tubes connected to the flat bottom portion and in fluid connection thereto; (b) providing a heat exchange medium flowing through the header and the tubes; and (c) passing heat or air over the tubes. 11. The method of claim 10, wherein the one-piece extruded header is comprised of steel, stainless steel, or a steel alloy. 12. A one-piece, flat-sided heat exchanger header capable of withstanding pressures of up to 3600 psig, comprising: (a) an extruded product comprised of steel having a flat bottom portion, the flat bottom portion having a thickness of about one half inch to about three inches and a plurality of apertures adapted to receive tubes machined therein; (b) substantially flat sides extending from the flat bottom portion, the substantially flat sides providing structural support for the header in part by maintaining a close tolerance of the flat bottom portion; (c) curved inside comers located where the flat bottom portion meets the substantially flat sides, the curved inside corners preventing the header from fracturing due to high pressures encountered when the header is in use; (d) a curved upper portion opposite the flat bottom portion where the substantially flat sides seamlessly complete the one-piece flat-sided heat exchanger header.
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