公开(公告)号：US4144722A

公开(公告)日：1979-03-20

申请号：US786181

申请日：1977-04-11

申请人： Michael O. Mattwell

发明人： Michael O. Mattwell

IPC分类号： C02F1/36 ,  F24F5/00 ,  F28F25/00 ,  F28D5/00

CPC分类号： C02F1/36 ,  F24F5/0003 ,  F28F25/00

摘要： An air conditioning system having an open condenser water circuit, a refrigeration unit, a closed heat exchange water circuit, and shunt circuits interconnecting the two water circuits to bypass the refrigeration unit, is provided with various side stream filtering arrangements for removing contaminants from the common water supply which have been picked up in passing through the cooling tower. One embodiment employs a centrifugal separator connected in shunt with the condenser water pump. Another embodiment employs a mechanical filter in shunt with a bypass line in the heat exchange water circuit with valving for selectively placing the filter in series with the condenser or the cooling coils. The second embodiment can be used in combination with the first embodiment. Improved backwashing and water conservation is achieved with the second embodiment by feeding backwash water during backwashing of the second filter through a further filter back to a point upstream of the condenser water pump but downstream of the cooling tower. Chemical treatment of the water is replaced by an electrodynamic-ultrasonic treatment device in side stream relation to a section of the open condenser water circuit. When required a closed loop filtration system is connected directly to the cooling tower drawing water from its sump and returning it directly after filtering. A water level sensor in the cooling tower controls a throttling valve downstream of the main pump to prevent the water from dropping below a safe level due to excessive load.

摘要翻译： 具有开放冷凝器水回路，制冷单元，封闭式热交换水回路以及将两个水回路互连以使制冷单元相互旁通的分流回路的空调系统设置有各种侧流过滤装置，用于从共同体中去除污染物 已经通过冷却塔拾取的供水。 一个实施例采用与冷凝器水泵并联连接的离心分离器。 另一个实施例采用机械过滤器与热交换水回路中的旁通管路分流，其中阀门用于选择性地将过滤器与冷凝器或冷却盘管串联。 第二实施例可以与第一实施例组合使用。 通过第二实施例，通过将第二过滤器的反冲洗中的反洗水通过另一过滤器反馈回冷凝器水泵上游的点而在冷却塔的下游，可以实现改进的反冲洗和节水。 水的化学处理被电动 - 超声波处理装置替代为与开放式冷凝器水回路的一部分的侧流关系。 当需要时，闭环过滤系统直接连接到冷却塔，从冷却塔中抽出水并在过滤后直接返回。 冷却塔中的水位传感器控制主泵下游的节流阀，以防止由于过载而使水落在安全水平以下。