MULTISTAGE CENTRIFUGAL PUMP WITH TWO PARALLEL FLOWS OF PUMPED MEDIUM

The invention relates to the field of pump design. A multistage centrifugal pump with two parallel flows of pumped medium comprises a housing consisting of two separate parts, each of which contains impellers and guide apparatus, and a central pressure cover mounted between said parts of the housing...

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Bibliographische Detailangaben
Hauptverfasser: KUSHNAREV Vladimir Ivanovich, OBOZNYJ Yurij Sergeevich, KUSHNAREV Ivan Vladimirovich
Format: Patent
Sprache:eng ; spa
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Beschreibung
Zusammenfassung:The invention relates to the field of pump design. A multistage centrifugal pump with two parallel flows of pumped medium comprises a housing consisting of two separate parts, each of which contains impellers and guide apparatus, and a central pressure cover mounted between said parts of the housing. A delivery pipe is vertical and centrally oriented. The pump additionally includes an end transfer cover for transferring fluid from the first part of the housing to the second part via transfer channels provided integrally with the pressure cover and the transfer cover. The impellers are arranged in the first and second parts of the housing such as to be opposed to one another in relation to the central pressure cover. The first part of the housing comprises a horizontal suction pipe and a vertical discharge pipe, which are disposed on the drive side of the pump and are configured in the form of a single cast part. The discharge pipe is connected by a transfer pipe to an annular chamber in the central pressure cover. The invention is directed toward simplifying the installation, assembly and repair of the pump in an operating environment, reducing the length of the pump piping, and allowing for disassembly and repair of the wet end of the pump without disconnecting the suction and discharge pipes. La invención se refiere al campo del diseño de bombas. Una bomba centrífuga multietapa con dos flujos paralelos de medio bombeado comprende una carcasa que consta de dos partes separadas, cada una de las cuales contiene impulsores y un aparato de guía, y una tapa de presión central montada entre dichas partes de la carcasa. un tubo de entrega es vertical y está orientada centralmente. La bomba incluye además una tapa de transferencia final para transferir fluido desde la primera parte del alojamiento al segunda parte a través de canales de transferencia proporcionados integralmente con la tapa de presión y la tapa de transferencia. Los impulsores están dispuestos en las partes primera y segunda de la carcasa de manera opuesta entre sí en relación con la tapa de presión central. La primera parte de la carcasa comprende un tubo de aspiración horizontal y un tubo de descarga vertical, que están dispuestos en el lado de accionamiento de la bomba y están configurados en forma de una sola pieza de fundición. El tubo de descarga está conectado por un tubo de transferencia a una cámara anular en la tapa de presión central. La invención está dirigida a simplificar la instala