CN2357957Y - 自吸式洒水车泵 - Google Patents

自吸式洒水车泵 Download PDF

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Publication number
CN2357957Y
CN2357957Y CN 97226600 CN97226600U CN2357957Y CN 2357957 Y CN2357957 Y CN 2357957Y CN 97226600 CN97226600 CN 97226600 CN 97226600 U CN97226600 U CN 97226600U CN 2357957 Y CN2357957 Y CN 2357957Y
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楼文尧
楼晓莉
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Lou Xiaoli
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Abstract

一种两级自吸式洒水车泵,由两个串联的离心泵和一个增速箱组成。两叶轮同向或反向安装于增速箱的输出轴上,被输介质经首级叶轮通过导叶进入二级叶轮。二级泵壳为涡壳式,并具有涡流室,压水室,气液分离室等自吸结构,完成自吸。泵的动力从增速箱通过汽车取力器获得。

Description

自吸式洒水车泵
本实用新型涉及自吸式水泵。
随着我国城市、道路建设事业的不断发展和环境卫生意识的加强,对洒水车提出了更高的要求。作为洒水车的主要工作部件-泵是决定其使用性能的关键。水泵的流量和扬程决定着洒水车的主要技术经济指标。以往我国用于洒水车的泵,在流量和扬程上远不能满足当今洒水车的使用要求,即需要增大泵的流量,提高泵的扬程。然而受车载安装尺寸的限制,又不能靠增大泵体、叶轮来提高泵的扬程和流量。
为达到上述目的,本实用新型提出了一种专门为洒水车配套而设计的泵,在外形尺寸适合于车载条件下,使流量和扬程都能满足洒水车的要求。
本实用新型的任务是通过下述技术方案实现的:
本实用新型有两大部分组成:一是增速齿轮箱,通过取力器经齿轮变速后将动力传递给泵,且起到增速的作用;二是泵,它是由两级离心泵串联而成,两个离心叶轮同向安装在泵轴上。首级泵为导叶式,由泵体、导叶和叶轮组成;二级泵为蜗壳式,在二级泵泵体左侧设有蜗流室,在涡流室下部设有回流孔,在泵体上部设有气液分离室,下部设有储液室,由二级泵实现自吸功能。增速齿轮箱通过其输出轴的法兰端面与泵后盖位置相连接而形成了泵的整体,使水泵的底脚在增速箱体上,而泵体上设有两个辅助支脚。
采用上述技术方案的洒水车泵,具有以下特点:
1、增速箱的输出端通过螺栓与泵联成一体,增速箱的输出轴即为泵轴;
2、首级泵的导叶固定在泵体上,并由泵的进口法兰压紧,首级导叶上的叶轮轮毂通孔又为滑动轴承的内孔;
3、被输介质经首级叶轮通过导叶直接进入第二级叶轮的进口;
4、首级泵无自吸功能,由第二级泵完成自吸,首级的叶轮在自吸过程中起到搅拌气液的作用,因而加快了自吸过程的完成;
5、增速箱输出轴处法兰端面为泵的后盖,密封座又置于其中;
6、密封座的一端用螺栓固定在增速箱的端都,另一端为二级泵涡流室的后盖,靠增速箱与泵体联结时压紧密封;
7、泵的安装底脚在增速箱体上,泵体上为两辅助支脚。
本实用新型由于具有以上特点,因而该泵结构简单,自吸性能好,体积小,维修方便,运行平稳,是较理想的洒水车用泵。
下面结合实施例对本实用新型作进一步说明:
附图为自吸式洒水车泵工作原理图。
如图所示,两个叶轮1.3同向安装于增速齿轮箱7的输出轴8上,增速齿轮箱7通过螺栓与泵体6连成一体,同时压紧密封座5。当轴8旋转后,水、气混合液从进口通过首级泵导叶2、叶轮1进入二级泵的涡流室4,叶轮3,在叶轮的高速搅拌作用下,气体在气、液分离室9分离而上升,通过泵出口排出,液体下落而通过回流孔11返回二级泵的涡流室4,又参与下一次的气液混合和分离循环,最后使泵内的空气排净,而使泵内充满液体,完成泵的自吸。图中12为滑动轴承支承点,10为储液室,位于二级泵壳的下方。
由于首级泵与二级泵是相通的,在自吸过程中,导叶的下部起储液罐的作用,叶轮也起气、液搅拌分离的作用,因而自吸性能要比单级泵好。
本实用新型也可作其他用途。

Claims (5)

1、自吸式洒水车泵,具有增速齿轮箱(7),其输出轴(8)与泵同轴,泵轴(8)上安装有叶轮,外面由泵体(6)包容着,其特征是:泵由两级离心泵串联而成,首级泵为导叶式,二级泵为涡壳式。
2、如权利要求1所述的洒水车泵,其特征是:在二级泵泵体左侧设有蜗流室(4),在蜗流室下部设有回流孔(11),泵体上部设有气液分离室(9),下部设有储液室(10)。
3、如权利要求1或2所述的洒水车泵,其特征是:两个叶轮(1)、(3)同向安装于泵轴(8)上。
4、如权利要求1或2所述的洒水车泵,其特征是:泵的底脚在增速齿轮箱(7)上,泵体上为辅助支脚。
5、如权利要求3所述的洒水车泵,其特征是:泵的底脚在增速齿轮箱(7)上,泵体上为辅助支脚。
CN 97226600 1997-09-25 1997-09-25 自吸式洒水车泵 Expired - Fee Related CN2357957Y (zh)

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CN 97226600 CN2357957Y (zh) 1997-09-25 1997-09-25 自吸式洒水车泵

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CN 97226600 CN2357957Y (zh) 1997-09-25 1997-09-25 自吸式洒水车泵

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105736389A (zh) * 2016-04-05 2016-07-06 江苏振华泵业制造有限公司 卧式联体自吸泵组
CN106812719A (zh) * 2016-11-15 2017-06-09 浙江永杰石化设备有限公司 一种洒水车水泵

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105736389A (zh) * 2016-04-05 2016-07-06 江苏振华泵业制造有限公司 卧式联体自吸泵组
CN106812719A (zh) * 2016-11-15 2017-06-09 浙江永杰石化设备有限公司 一种洒水车水泵

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