Direct contact heat exchanger and methods for making and using same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F01K-025/08
F01K-025/00
F01K-007/00
출원번호
US-0533949
(2009-07-31)
등록번호
US-8281592
(2012-10-09)
발명자
/ 주소
Kalina, Alexander I.
출원인 / 주소
Kalina, Alexander I.
대리인 / 주소
Strozier, Robert W
인용정보
피인용 횟수 :
1인용 특허 :
15
초록▼
A direct heat exchange method and apparatus for recovering heat from a liquid heat source is disclosed, where the method includes contacting a liquid heat source stream with a multi-component hydrocarbon fluid, where the hydrocarbon fluid compositions has a linear or substantially linear temperature
A direct heat exchange method and apparatus for recovering heat from a liquid heat source is disclosed, where the method includes contacting a liquid heat source stream with a multi-component hydrocarbon fluid, where the hydrocarbon fluid compositions has a linear or substantially linear temperature versus enthalpy relationship over the temperature range of the direct heat exchange apparatus.
대표청구항▼
1. A method comprising: pressurizing a heat source stream to a pressure equal to a pressure to a multi-component heat carrier (MCHC) fluid to form a pressure, adjusted heat source stream,forwarding the pressure, adjusted heat source stream to a heat source inlet port of a direct heat exchange appara
1. A method comprising: pressurizing a heat source stream to a pressure equal to a pressure to a multi-component heat carrier (MCHC) fluid to form a pressure, adjusted heat source stream,forwarding the pressure, adjusted heat source stream to a heat source inlet port of a direct heat exchange apparatus located in an upper portion of a middle section of the direct heat exchange apparatus,concurrently, forwarding a pressure adjusted, fully condensed multi-component heat carrier (MCHC) stream to a MCHC inlet port of the direct heat exchange apparatus located at a lower portion of the middle section of the direct heat exchange apparatus, where the MCHC fluid has a lower density than the heat source stream,exchanging heat between the heat source stream and the MCHC stream in the direct heat exchange apparatus as the MCHC fluid rises in the direct heat exchange apparatus and the heat source stream falls in the direct heat exchange apparatus,accumulating a MCHC saturated vapor or a MCHC partially vaporized fluid in an upper section of the direct heat exchange apparatus,accumulating the cooled heat source fluid in a lower section of the direct heat exchange apparatus,accumulating a mineral precipitate in a bottom section of the direct heat exchange apparatus,withdrawing a spent heat source stream from the lower section of the direct heat exchange apparatus via a heat source outlet port located in an upper portion of the lower section of the direct heat exchange apparatus below the MCHC inlet,withdrawing the saturated MCHC vapor from the direct heat exchange apparatus as a MCHC saturated vapor stream or a partially vaporized MCHC stream via a MCHC outlet port located in a top portion of the upper section of the direct heat exchange apparatus,passing the MCHC saturated vapor stream or a partially vaporized MCHC stream through a heat exchange apparatus in counter-flow with a fully condensed working fluid stream to form a fully condensed MCHC stream and a fully vaporized or fully vaporized and superheated working fluid stream, andpassing the fully condensed MCHC stream through a circulating pump to adjust the pressure of the stream to an entry pressure to form the pressure adjusted, fully condensed MCHC stream. 2. The method of claim 1, further comprising: converting a portion of the heat in the fully vaporized or fully vaporized and superheated working fluid stream into a usable form of energy in an energy extraction subsystem. 3. The method of claim 1, wherein the MCHC fluid comprises at least four components mixed in a weight ratio having linear enthalpy to temperature relationship over an operating temperature range of the direct heat exchange apparatus. 4. The method of claim 1, wherein the heat source inlet port includes a sprayer for breaking the heat source fluid into droplets or jets and wherein the heat exchange apparatus comprises a single heat exchanger, a plurality of heat exchangers, or a multi-stage heat exchanger. 5. The method of claim 1, wherein the heat source inlet port includes a sprayer for breaking the heat source fluid into droplets or jets. 6. The method of claim 1, wherein the heat exchange apparatuses comprise a single heat exchanger, a plurality of heat exchangers, or a multi-stage heat exchanger. 7. A method comprising: passing a hot heat source stream through a first heat exchange apparatus in counter flow heat exchange relationship with a heated or heated and partially vaporized working fluid stream to form a fully vaporized or fully vaporized and superheated working fluid stream and a cooled heat source stream,pressurizing the cooled heat source stream to a pressure equal to a pressure to a multi-component heat carrier (MCHC) fluid to form a pressure, adjusted cooled heat source stream,forwarding the pressure, adjusted heat source stream to a heat source inlet port of a direct heat exchange apparatus located in an upper portion of a middle section of the direct heat exchange apparatus,concurrently, forwarding a pressure adjusted, fully condensed multi-component heat carrier (MCHC) stream to a MCHC inlet port of the direct heat exchange apparatus located at a lower portion of the middle section of the direct heat exchange apparatus, where the MCHC fluid has a lower density than the heat source stream,exchanging heat between the heat source stream and the MCHC stream in the direct heat exchange apparatus as the MCHC fluid rises in the direct heat exchange apparatus and the heat source stream falls in the direct heat exchange apparatus,accumulating a MCHC saturated vapor or a MCHC partially vaporized fluid in an upper section of the direct heat exchange apparatus,accumulating the cooled heat source fluid in a lower section of the direct heat exchange apparatus,accumulating a mineral precipitate in a bottom section of the direct heat exchange apparatus,withdrawing a spent heat source stream from the lower section of the direct heat exchange apparatus via a heat source outlet port located in an upper portion of the lower section of the direct heat exchange apparatus below the MCHC inlet,withdrawing the saturated MCHC vapor from the direct heat exchange apparatus as a MCHC saturated vapor stream or a partially vaporized MCHC stream via a MCHC outlet port located in a top portion of the upper section of the direct heat exchange apparatus,passing the MCHC saturated vapor stream or a partially vaporized MCHC stream through a second heat exchange apparatus in counter-flow with a fully condensed working fluid stream to form a fully condensed MCHC stream and a heated or heated and partially vaporized working fluid stream, andpassing the fully condensed MCHC stream through a circulating pump to adjust the pressure of the stream to an entry pressure to form the pressure adjusted, fully condensed MCHC stream. 8. The method of claim 7, further comprising: converting a portion of the heat in the fully vaporized or fully vaporized and superheated working fluid stream into a usable form of energy in an energy extraction subsystem. 9. The method of claim 7, wherein the MCHC fluid comprises at least four components mixed in a weight ratio having linear enthalpy to temperature relationship over an operating temperature range of the direct heat exchange apparatus.
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