公开(公告)号：US4901533A

公开(公告)日：1990-02-20

申请号：US842575

申请日：1986-03-21

申请人： Chung T. Fan ,  Hannes Oelschlegel

发明人： Chung T. Fan ,  Hannes Oelschlegel

IPC分类号： F25J1/02

CPC分类号： F25J1/0249 ,  F25J1/0022 ,  F25J1/004 ,  F25J1/0045 ,  F25J1/0055 ,  F25J1/0212 ,  F25J1/0244 ,  F25J2220/62 ,  F25J2220/64

摘要： In a process for cooling gas fluid feed material from an initial temperature to a second, cryogenic temperature which utilizes a single mixed refrigerant composition whose respective constituents possess a range of successively lower boiling points, wherein said refrigerant composition is passed through a single closed loop refrigeration cycle involving compression, partial condensation in an aftercooler phase separation, heat exchange and expansion, wherein heat exchange occurs in a cold box containing a warm end and a cold end heat exchanger, said exchangers being thermally connected in series relationship, wherein the improvement comprises regulating the flow rate of the vapor-containing refrigerant stream passing from said partial condensation stage by diverting predetermined amounts of liquid refrigerant from the liquid-containing refrigerant stream, also passing from said partial condensation stage, into said vapor-containing stream, said diverting occurring at a point inside the cold box after said vapor-containing stream exits the warm end heat exchanger, but before it enters the cold end heat exchanger. Apparatus to accomplish the process is also disclosed.

摘要翻译： 在从初始温度到第二温度的气体流体进料的冷却过程中，使用单一混合制冷剂组合物的低温温度，其中各组分具有连续较低沸点的范围，其中所述制冷剂组合物通过单个闭环制冷 循环涉及压缩，后冷却器相分离，热交换和膨胀中的部分冷凝，其中在包含温端和冷端热交换器的冷箱中发生热交换，所述交换器以串联方式热连接，其中改进包括调节 通过将预定量的液体制冷剂从含液态的制冷剂流转移到所述含蒸汽的流中，从所述部分冷凝段流出的含蒸气的制冷剂流的流量也在 一点内 所述含蒸气的物流离开热端热交换器之后，但在其进入冷端热交换器之前的冷箱。 还公开了完成该方法的装置。

公开(公告)号：US4582122A

公开(公告)日：1986-04-15

申请号：US521800

申请日：1983-08-10

申请人： Chung T. Fan

发明人： Chung T. Fan

IPC分类号： F22D1/36 ,  F23J15/00 ,  F23L15/02 ,  F28D17/00

CPC分类号： F23L15/02 ,  F22D1/36 ,  F23J15/006 ,  Y02E20/348 ,  Y10S122/01 ,  Y10S122/02

摘要： In the recovery of waste heat from flue gas containing particulate solids, CO.sub.2, SO.sub.2, SO.sub.3 and H.sub.2 O, several improvements are provided, e.g., passing hot flue gas, e.g., from a power plant, over heat exchange surface attackable by sulfuric acid, e.g., in a combustion air preheater, so as to release heat to said heat exchange surface and to partially cool said flue gas to a temperature within the range of about 350.degree. F. to above the condensation temperature of sulfuric acid; passing resultant partially cooled gas through a particulate removal zone to separate the particulate solids from the partially cooled flue gas; passing resultant solids-depleted, partially cooled flue gas to a regenerator containing heat exchange surface resistant to attack by sulfuric acid to release additional heat and to cool said flue gas to a temperature below the condensation temperature of sulfuric acid; and recovering the heat from the regenerator with air which is then passed through the air preheater to be used as combustion air for the furnace.

摘要翻译： 在从含有颗粒固体，二氧化碳，二氧化硫，二氧化硫和二氧化硫的烟道气中回收废热时，提供了若干改进措施，例如，将热废气（例如来自发电厂）通过硫酸可以暴露的热交换表面，例如 在燃烧空气预热器中，以将热量释放到所述热交换表面并将所述烟道气部分地冷却至约350°F至高于硫酸冷凝温度的温度; 将产生的部分冷却的气体通过颗粒去除区域以将颗粒固体与部分冷却的烟道气分离; 将所得固体耗尽的部分冷却的烟道气通入含有耐硫酸侵蚀的热交换表面的再生器以释放额外的热量并将所述烟道气冷却至低于硫酸的冷凝温度的温度; 并用空气回收再生器的热量，然后空气通过空气预热器，用作炉的燃烧空气。