A forced circulating axial-flow pump, which is characterized in that the pump shaft near the impeller end are provided with a mechanical sealing device and guide bearing; guide bearing is positioned on the supporting tube, the guide bearing on the pump shaft to support the shaft cantilever shorter, enhance the stability of the rotor components, prolong the life of the equipment; mechanical sealing device the shaft and the completely isolated transport medium, effectively prevent shaft wear and corrosion, reduce the maintenance cost of the equipment. The pump cover, the bearing body and the pump shaft are connected with the pump body, and the rotor parts can be completely pulled out. The disassembly and repair is convenient and time-saving and labor-saving. The pump cover and supporting pipe are provided with through holes, and through holes are connected with the sealing and washing interfaces. Through the interface, the flushing fluid can play the role of cooling and lubricating for the shaft and the guide bearing, thereby reducing the mechanical failure caused by the temperature change of the rotor components. The pump body is designed to be a 90 degree bend in the form of the pump, which can be directly connected to the pipe, without any support and quick and convenient installation.
【技术实现步骤摘要】
一种强制循环轴流泵
本专利技术涉及机械工程泵类
,具体说是一种强制循环轴流泵。
技术介绍
当前卧式轴流泵的应用越来越广泛,其结构特点为:轴向尺寸比较长,安装叶轮端的泵轴悬臂比较大,导致泵的整体运行稳定性较差,致使泵的寿命较短。泵盖与泵体的连接比较复杂,装配和拆卸比较麻烦,维修也不方便。
技术实现思路
为了克服现有技术的不足,本专利技术的目的是提供一种缩小安装叶轮端泵轴的悬臂、拆装维修比较方便的一种强制循环轴流泵。实现本专利技术的目的所采用的技术方案是:该一种强制循环轴流泵主要由泵体、泵轴、叶轮、泵盖和轴承体构成,泵轴靠轴承体支撑,泵轴的尾端装有叶轮;泵轴上靠近叶轮端依次装有机械密封装置和导轴承;导轴承位于支撑管内靠支撑管支撑,其右端与泵盖焊接在一起;泵盖、轴承体与泵轴构成一个整体与泵体连接,叶轮端位于泵体内。所述的泵盖及支撑管上设有通孔,该通孔与密封冲洗接口连接。所述的泵体设计成泵的进、出口成90°度弯头形式。所述的泵盖及轴承体上设有加强筋。本专利技术的有益效果是:由于在泵轴上装有导轴承和机械密封装置,靠支撑管对转子部件进行支撑,缩短了叶轮端泵轴的悬臂,使泵轴的刚性增加,转子部件的稳定性增强,延长了设备的使用寿命;机械密封装置密封将轴与输送介质完全隔离,有效防止轴的磨损和腐蚀,降低了设备的维修成本;泵盖、轴承体与泵轴构成一个整体与泵体连接,使泵的结构为后开门结构,转子部件可以完全抽出,拆装维修比较方便,省时省力;通孔与密封冲洗接口的设置,通过接口输入冲洗液可对轴及导轴承起到冷却及润滑作用,减少了转子部件因温度变化而产生的机械故障;泵的进、出口成90°弯头 ...
【技术保护点】
一种强制循环轴流泵,由泵体、泵轴、叶轮、泵盖和轴承体构成,泵轴(8)靠轴承体(6) 支撑,泵轴(8)的尾端装有叶轮;其特征在于:所述的泵轴(8)上靠近叶轮端依次装有机械密 封装置(1)和导轴承(2);导轴承(2)位于支撑管(3)内靠支撑管(3)支撑,支撑管(3)的右端 与泵盖(5)焊接在一起;泵盖(5)、轴承体(6)与泵轴(8)构成一个整体与泵体(9)连接,叶轮 端位于泵体内。
【技术特征摘要】
1.一种强制循环轴流泵,由泵体、泵轴、叶轮、泵盖和轴承体构成,泵轴(8)靠轴承体(6)支撑,泵轴(8)的尾端装有叶轮;其特征在于:所述的泵轴(8)上靠近叶轮端依次装有机械密封装置(1)和导轴承(2);导轴承(2)位于支撑管(3)内靠支撑管(3)支撑,支撑管(3)的右端与泵盖(5)焊接在一起;泵盖(5)、轴承体(6)与泵轴(8)构成一个整体与泵体(9)连接,叶轮端位...
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