| 摘要 |
Provided are a pump system with pumps aligned parallel to each other and a method of controlling the same for cleaning strainers easily and conveniently. To do this, the pump system for cleaning strainer having a main circulation pump and a stand-by circulation pump disposed parallel to each other, and a main strainer and a stand-by strainer attached to the upstream positions in the inlets of the pumps respectively, is configured to include drain valves installed at the threshold position to the main strainer and the stand-by strainer respectively; and a main by-pass valve and a stand-by by-pass valve installed in the main circulation pump and the stand-by circulation pump respectively, in which in order to clean the main strainer, the main circulation pump is turned OFF, and the stand-by circulation pump is made to operate so that water passes through the main by-pass valve and passes through the outlet of the main strainer and passes through the inside of the main strainer for backwash and is drained out through the main drain valve; and in order to clean the stand-by strainer, the stand-by circulation pump is turned OFF, and the main circulation pump is made to operate so that water passes through the stand-by by-pass valve and passes through the outlet of the stand-by strainer and passes through the inside of the stand-by strainer for backwash and is drained out through the stand-by drain valve. Provided are the pump system and the method of controlling the same by which the frequent block of the strainers by particulates and/or debris and thereby the cleaning of the strainers can be done easily. Provided are the pump system and the method of controlling the same by which the time loss and expenses can be saved much in contrast to conventional pump systems occurring the efforts to loosen and tighten each of the bolts of the strainer during the exchange of the strainers, inconvenience and expenses loss of gasket exchange and its damages during the cover disassembled, and needs to remove insulating means and heat new insulating means, thereby to minimize the efforts in management of the pump system and save time and expenses thereof. |
