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1. 发明申请

US20110226008A1 INTEGRATED PRE-COOLED MIXED REFRIGERANT SYSTEM AND METHOD 有权
标题翻译：综合预冷混合制冷系统及方法
公开(公告)号：US20110226008A1
公开(公告)日：2011-09-22
申请号：US12726142
申请日：2010-03-17
申请人： TIM GUSHANAS , Doug Douglas Ducote, JR. , James Podolski
发明人： TIM GUSHANAS , Doug Douglas Ducote, JR. , James Podolski
IPC分类号： F25J1/00
CPC分类号： F25J1/0218 , F25J1/0012 , F25J1/0015 , F25J1/0022 , F25J1/0055 , F25J1/0212 , F25J1/0214 , F25J1/0216 , F25J1/0217 , F25J1/0279 , F25J1/0291 , F25J1/0292 , F25J1/0297 , F25J2205/02 , F25J2205/90 , F25J2220/62 , F25J2220/64 , F25J2235/02 , F25J2270/60 , F25J2270/66
摘要： A system and method for cooling and liquefying a gas in a heat exchanger that includes compressing and cooling a mixed refrigerant using first and last compression and cooling cycles so that high pressure liquid and vapor streams are formed. The high pressure liquid and vapor streams are cooled in the heat exchanger and then expanded so that a primary refrigeration stream is provided in the heat exchanger. The mixed refrigerant is cooled and equilibrated between the first and last compression and cooling cycles so that a pre-cool liquid stream is formed and subcooled in the heat exchanger. The stream is then expanded and passed through the heat exchanger as a pre-cool refrigeration stream. A stream of gas is passed through the heat exchanger in countercurrent heat exchange with the primary refrigeration stream and the pre-cool refrigeration stream so that the gas is cooled. A resulting vapor stream from the primary refrigeration stream passage and a two-phase stream from the pre-cool refrigeration stream passage exit the warm end of the exchanger and are combined and undergo a simultaneous heat and mass transfer operation prior to the first compression and cooling cycle so that a reduced temperature vapor stream is provided to the first stage compressor so as to lower power consumption by the system. Additionally, the warm end of the cooling curve is nearly closed further reducing power consumption. Heavy components of the refrigerant are also kept out of the cold end of the process, reducing the possibility of refrigerant freezing, as well as facilitating a refrigerant management scheme.
摘要翻译：一种用于冷却和液化热交换器中的气体的系统和方法，其包括使用第一和最后的压缩和冷却循环来压缩和冷却混合制冷剂，从而形成高压液体和蒸气流。高压液体和蒸汽流在热交换器中被冷却，然后膨胀，使得在热交换器中提供初级制冷流。混合的制冷剂在第一和最后的压缩和冷却循环之间被冷却和平衡，从而在热交换器中形成预冷液体流并过冷。然后将该物流作为预冷的制冷流膨胀并通过热交换器。气流通过热交换器与初级制冷流和预冷制冷流逆流热交换，使得气体被冷却。来自初级制冷流通道的所得蒸汽流和来自预冷制冷流通道的两相流离开交换器的暖端，并在第一次压缩和冷却之前组合并经历同时的热和质量传递操作循环，使得将降低温度的蒸气流提供给第一级压缩机，以便降低系统的功率消耗。另外，冷却曲线的暖端几乎封闭，进一步降低功耗。制冷剂的重要部件也被保持在冷却过程的冷端之外，从而降低制冷剂冷冻的可能性，以及促进制冷剂管理方案。

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