发明名称 |
Isentropic expansion of gases via a pelton wheel |
摘要 |
This invention relates to an improved isentropic process for liquefying a gas, preferably a cryogenic fluid, which comprises forming a critical fluid, expanding the critical fluid through a Pelton Wheel to a pressure below the critical pressure forming a liquefied gas and removing work. The improvement for enhancing the efficiency of the Pelton Wheel in removing work comprises: withdrawing the liquefied gas from the Pelton Wheel at its saturation temperature or at a temperature below its saturation temperature, and establishing and maintaining a vapor environment about the Pelton Wheel by the method selected from the group consisting of injecting a second gas into the Pelton Wheel, said second gas being introduced into the Pelton Wheel at the saturation temperature or at a temperature slightly above the saturation temperature of the liquefied gas; and raising the enthalpy of the liquefied gas after it has been withdrawn from the Pelton Wheel to an enthalpy above the enthalpy of saturated liquid.
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申请公布号 |
US4179897(A) |
申请公布日期 |
1979.12.25 |
申请号 |
US19750607226 |
申请日期 |
1975.08.25 |
申请人 |
AIR PRODUCTS AND CHEMICALS INC |
发明人 |
FILIPPI, RICHARD E;HVIZDOS, LEONARD J;LUYBLI, RICHARD E |
分类号 |
F25J1/00;F25J3/04;F25J5/00;(IPC1-7):F25J1/00 |
主分类号 |
F25J1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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