-
公开(公告)号：US06666042B1
公开(公告)日：2003-12-23
申请号：US10188562
申请日：2002-07-01
IPC分类号： F25D1702
CPC分类号： F25D17/02 , F24F3/065 , F24F11/85 , F25B2400/06 , F25B2500/18 , F25B2700/21172 , F25B2700/21173
摘要： To provide chilled water, a variable-primary-flow system includes two variable speed pumps that pump water through a first chiller and a second chiller. A control energizes the second chiller in response to a cooling demand exceeding that what can be met by the first chiller operating alone, and de-energizes the second chiller upon the cooling demand decreasing to a level below the first chiller's maximum capacity. When both chillers are operating, the capacities of the chillers are modulated in unison to meet the cooling demand. Likewise, when both pumps are running, their speed is modulated in unison to provide a desired pressure.
摘要翻译： 为了提供冷冻水，可变主流系统包括两个变速泵，其通过第一冷却器和第二冷却器泵送水。 控制器响应于超过第一冷却器单独操作可以满足的冷却需求来激励第二冷却器，并且在冷却需求下降到低于第一冷却器最大容量的水平时使第二冷却器断电。 当两个制冷机都运行时，冷却器的容量一致调节以满足冷却需求。 同样地，当两个泵运行时，它们的速度被一致地调节以提供所需的压力。
-
公开(公告)号：US09423159B2
公开(公告)日：2016-08-23
申请号：US12653935
申请日：2009-12-21
CPC分类号： F25B30/06 , F25B7/00 , F25B29/003 , F25B49/02 , F25B2313/002 , F25B2400/06 , F25B2600/13 , F25B2700/21
摘要： A multi-mode, bi-directional cascade heat pump system, according to some examples, includes at least two chillers each being part of a unidirectional refrigerant circuit. The system includes heat exchangers each of which are dedicated to operate as just a condenser or as just an evaporator, regardless of the system's operating mode. In some modes, a secondary fluid transfers heat between the condenser of one chiller and the evaporator of another chiller before the fluid returns to a secondary fluid source such as, for example, a geothermal borefield or a conventional water source. In some embodiments, fluid is withdrawn from a borefield by way of a pump having a speed that varies to maintain a desired fluid temperature and/or a desired heat transfer rate at the borefield. The heat pump system includes means for minimizing flow through the borefield and for minimizing unnecessary mixing of relatively high and low temperature fluid.
摘要翻译： 根据一些示例，多模式双向级联热泵系统包括至少两个冷却器，每个都是单向制冷剂回路的一部分。 该系统包括热交换器，每个热交换器专用于仅作为冷凝器或仅作为蒸发器操作，而与系统的操作模式无关。 在一些模式中，在流体返回到次级流体源例如地热钻孔区域或常规水源之前，次流体在一个冷却器的冷凝器和另一个冷却器的蒸发器之间传递热量。 在一些实施例中，流体通过具有变化的速度的泵从钻孔中取出，以保持所需的流体温度和/或在钻孔区域期望的期望的热传递速率。 热泵系统包括用于使通过钻孔区域的流量最小化并且用于最小化相对高温和低温流体的不必要混合的装置。
-
公开(公告)号：US20110146317A1
公开(公告)日：2011-06-23
申请号：US12653935
申请日：2009-12-21
CPC分类号： F25B30/06 , F25B7/00 , F25B29/003 , F25B49/02 , F25B2313/002 , F25B2400/06 , F25B2600/13 , F25B2700/21
摘要： A multi-mode, bi-directional cascade heat pump system, according to some examples, includes at least two chillers each being part of a unidirectional refrigerant circuit. The system includes heat exchangers each of which are dedicated to operate as just a condenser or as just an evaporator, regardless of the system's operating mode. In some modes, a secondary fluid transfers heat between the condenser of one chiller and the evaporator of another chiller before the fluid returns to a secondary fluid source such as, for example, a geothermal borefield or a conventional water source. In some embodiments, fluid is withdrawn from a borefield by way of a pump having a speed that varies to maintain a desired fluid temperature and/or a desired heat transfer rate at the borefield. The heat pump system includes means for minimizing flow through the borefield and for minimizing unnecessary mixing of relatively high and low temperature fluid.
摘要翻译： 根据一些示例，多模式双向级联热泵系统包括至少两个冷却器，每个都是单向制冷剂回路的一部分。 该系统包括热交换器，每个热交换器专用于仅作为冷凝器或仅作为蒸发器操作，而与系统的操作模式无关。 在一些模式中，在流体返回到次级流体源例如地热钻孔区域或常规水源之前，次流体在一个冷却器的冷凝器和另一个冷却器的蒸发器之间传递热量。 在一些实施例中，流体通过具有变化的速度的泵从钻孔中取出，以保持所需的流体温度和/或在钻孔区域期望的期望的热传递速率。 热泵系统包括用于使通过钻孔区域的流量最小化并且用于最小化相对高温和低温流体的不必要混合的装置。
-
公开(公告)号：US5600960A
公开(公告)日：1997-02-11
申请号：US563848
申请日：1995-11-28
CPC分类号： F25B49/043 , F25B49/027 , F28F27/003
摘要： A method of minimizing energy use in a chiller and cooling tower system is disclosed. The method comprises the steps of: determining a measure of chiller efficiency; determining a measure of cooling tower efficiency; determining a measure of the transfer rate of heat energy between the cooling tower and the chiller; calculating a near optimal water temperature as a function of the chiller work efficiency, the cooling tower efficiency and the transfer rate; and operating the cooling tower to provide a conditioned fluid at the temperatures to produce near optimal energy consumption.
摘要翻译： 公开了一种在冷却器和冷却塔系统中最小化能量使用的方法。 该方法包括以下步骤：确定冷却器效率的量度; 确定冷却塔效率的度量; 确定冷却塔和冷却器之间的热能传递速率的度量; 根据冷水机组的工作效率，冷却塔效率和传输速率计算近似最佳的水温; 并操作冷却塔以在温度下提供调节流体以产生接近最佳的能量消耗。
-
-
-
搜索结果
4 条记录 (耗时 0.011 秒)
