PHC-300A全自动冷热水自吸泵

品牌韩程型号phc-300a材质铸铁驱动方式自动用途自吸泵泵轴位置卧式叶轮结构敞开式叶轮叶轮数目单级叶轮吸入方式单吸式原理自吸泵性能自动扬程35（m）转速2860（r/m）功率300（w）流量34（m3/h）

温岭韩程泵业有限公司成立于1995年.本厂主要生产韩程phc全自动冷热水自吸泵、非自动冷热水自吸泵、冷热水循环管道泵、热水自动增压泵、全自动家用增压泵等家用水泵，主要用于锅炉、壁挂炉、蒸气发生器、地暖循环设备等。

型号phc-300a功率（w）300电源（v/hz）220v，50hz转速（r/min）2860大流量（i/min）34

大扬程（m）

35吸程（m）9压力开关（kg/cm2）1.5-2.2管径（mm）25重量（kg）12包箱尺寸（mm）300*240*330

自吸泵的工作原理：

普通离心泵，若吸入液面在叶轮之下，启动时应预先灌水，很不方便。为了在泵内存 水，吸入管进口需要装底阀，泵工作时，底阀造成很大的水力损失。所谓自吸泵，就是在启动前不需灌水（安装后第一次启动仍然需灌水），经过短时间运转，靠泵本身的作用，即可以把水吸上来，投入正常工作。自吸泵按作用原理分为以下几类：1.气液混合式（包括内混式和外混式）； 2.水环轮式；3.射流式（包括液体射流和气体射流）。气液混合式自吸泵的工作过程：由于自吸泵泵体的特殊结构，水泵停转后，泵体内存有一定量的水，泵再次启动后由于叶轮旋转作用，吸入管路的空气和水充分混合，并被排到气水分离室，气水分离室上部的气体溢出，下部的水返回叶轮，重新和吸入管路的剩余空气混合，直到把泵及吸入管内的气体全部排出，完成自吸，并正常抽水。水环轮式自吸泵是将水环轮和水泵叶轮组合在一个壳体内，借助水环轮将气体排出，实现自吸。当泵正常工作后，可通过阀截断水环轮和水泵叶轮的通道，并且放掉水环轮内的液体。射流式自吸泵，由离心泵和射流泵（或喷射器）组合而成，依靠喷射装置，在喷嘴处造成真空实现抽吸。

the workingprinciple of self-suction pump：

normal centrifugal pump impeller ifuid surface, start in advance, should be inconvenient. in orderto water pump suction pipe, memory, import needs bottom valve pumpworking, bottom valve caused great losses. so-called self-suctionpump, is in start without irrigation (before the first start afterinstallation to infuse water), still for a short time afteroperation, the effect on pump itself, which can be put into water,the normal work. according to the principle of self-suction pumpfunction can be divided into several categories: 1.the gas-li (including mixed type within and outside the mixed type), 2water wheel, 3 jetting (including liquid jet and the gas jet)uid hybrid self-suction pump working process: because of thepump suction pump stalled after the special structure, the pumpbody, being a certain amount of water pump impeller rotation due tostart again, inhaled air and water pipe, and is fully mixing gaswater separation chamber to water, air separation chamber of theupper spillover of water, gas, and the return of impeller residualair suction pipe, the pump suction pipe and until all the gasdischarge, complete, and normal self-suction pump. water wheelself-suction pump water ring round is in a combination of pumpimpeller and using water loop, wheel, gas discharge self-priming.when the pump is normal work, but through the valve and pump waterloop truncate the channel impeller, and put off the liquid waterring round. jetting self-suction pump, the centrifugal pump and jetpump injector (or on), spray nozzle, vacuum suction causedrealization.