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公开(公告)号：US06604688B2
公开(公告)日：2003-08-12
申请号：US10147232
申请日：2002-05-14
IPC分类号： F25D1704
CPC分类号： F24F3/1405 , G05D23/1393
摘要： A VAV air handler includes a cooling coil with a return air bypass damper for improved dehumidification. The bypass interjects into the supply air a portion of relatively warm, dry return air downstream of the cooling coil. This allows the cooling coil to absorb more latent heat from the incoming outside air and the remaining portion of the return air over a broad range of operating conditions, but especially at low load conditions.
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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 In some embodiments, fluid is withdrawn from a borefield by way of a pump having a speed that varies to maintain a desired fluid temperature and/or a desired heat transfer rate at the borefield.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。
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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。
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公开(公告)号：US06386281B1
公开(公告)日：2002-05-14
申请号：US09665206
申请日：2000-09-18
IPC分类号： G05D2300
CPC分类号： F24F3/1405 , G05D23/1393
摘要： A VAV air handler includes a cooling coil with a return air bypass damper for improved dehumidification. The bypass interjects into the supply air a portion of relatively warm, dry return air downstream of the cooling coil. This allows the cooling coil to absorb more latent heat from the incoming outside air and the remaining portion of the return air over a broad range of operating conditions, but especially at low load conditions.
摘要翻译： VAV空气处理器包括具有用于改善除湿的回风旁路阻尼器的冷却盘管。 旁路将冷却盘管下游的相对温暖，干燥的回流空气的一部分进入供气。 这允许冷却盘管在宽范围的操作条件下，特别是在低负载条件下，从进入的外部空气和回流空气的剩余部分吸收更多的潜热。
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