DOC《河北远东泵业制造有限公司》

河北远东泵业制造有限公司 HEBEI YUANDONG PUMPS MANUFACTURING CO.

,LTD SPF三螺杆泵 使用维护说明书 (中文) 地址:河北省泊头市道东街88号

电话:0317-8263980

8266649 8223128 传真:0317-8265584

网址:http://www.gearpump.net.cn

邮箱:hbydby@126.com ALLWEILER螺杆泵SP系列 使用说明书

1、概述 SP系列三螺杆泵具有两种形式: SPF……G ―― 不带滤器三螺杆泵 SPF……G……F ――本身带有滤器的三螺杆泵 1.1 用途:用于输送燃油、润滑油、液压油或其它润滑性液体,被输送介质不得含有磨擦性颗粒及对泵材料具有腐蚀性. 1.2 主要应用范围:SPF泵可用做输送泵,增压泵和燃油泵.该泵不仅在各工业部门用做滑油泵,同时还可用做为抽油或注油泵.此外,SPF泵在各种液压装置中用做压力源. 1.3 温度和压力极限及介质粘度: 允用最高介质温度 ―― 150℃ 允用最高出口压力 ―― 40bar 允用最高进口压力 ――

8 bar 依据不同的转速、压力和吸入条件,介质粘度可为2mm2/s(1.1°E)――7600 mm2/s(1,000°E) 1.4 运行:由于啮合螺杆的特殊齿型,三根相互啮合螺杆形成密封腔,当螺杆转动时,密封腔容积沿螺杆轴向均匀地由吸入 端向排出端直线移动.虽然螺杆转动,并不引起液体搅动.同时,由于密封腔容积在移动时恒定不变,不产生油液挤压现象. 由于螺杆泵本身结构和运行状态,可以保证低噪声和无脉动输送. Operating Instruction of ALLWEILER Screw Pumps of Series SP General Screw pump series SP have two types: SPF.G―-Screw pump without filter SPF....G....F―Screw pump with attached filter Usage: for handling fuel oil, lubricating C hydraulic oil and other lubricating liquids. But, pumping liquids should not contain any abrasive grains and corrosive contamination. Main field of application: as transfer-, booster- and fuel oil pump. This pumps are not only lubricating pumps in each industrial parts, but also handling pumps and as pressure pump in hydraulic system. Temperature: pressure limit and viscosity of liquid Max. temperature of liquid - 150℃ Max. pressure of discharge -40 bar Max. pressure of suction -8 bar According to different rpm;

pressure and suction conditions, viscosity of liquid can be

2 mm2/s (1.1°E)-7600mm/s (1,000°E) Operation: owing to a special profile of the thread flanks, the three screws form sealed chambers and the contents in which are axially and completely continuously shifted from the suction to the discharge end of the pump as the screws rotate. There will be no turbulence in spite of the screw rotation. The content chamber volume excludes squeezing. The structural design and operation of the screw pump ensure a very low noise level and an almost pulsation free delivery.

2、结构 2.1 具有自吸性能的三螺杆泵,依靠经过增加硬度和磨削处理的三根相互啮合的螺杆在可更换的衬套中旋转而做功. 主动螺杆处于液压平衡状态,从动螺杆(位于主动螺杆两侧)的轴向力由泵后盖承担,其旋转运动由液压力驱动.啮合螺杆之间仅仅传递克服液体磨擦的力矩.因此,螺杆之间无动力作用,不产生磨损.泵中转动元 件均由所输介质润滑而处于液体磨擦状态. 主动螺杆的轴向和径向支承由轴承套中的平衡活塞来承担.平衡活塞和轴承之间的间隙将压力腔和密封腔分隔开.密封腔通过泵体中回油孔与吸入腔相通.因此,轴封压力与输送压力无关,只取决于吸入压力. 整机供货时,泵和驱动电机由带有角架的联接架联接. 2.2 轴封:采用非平衡式机械密封 对于EX―20机械密封,其材料组合如下表

2、configuration 2.1 self-priming three screw type of pump with internal bearing. The hardened and ground screws run in an exchangeable casing insert. The driving screw is hydraulically balanced. The axial thrust of the working screw is absorbed by the endside pump cover. Their drive is hydraulic. The thread flanks merely transmit the torque resulting from the liquid friction. Thus, the thread flanks are practically stressfree and not subject to any wear. All sliding parts are lubricated by the delivery medium being within the range of full liquid friction. The radial and axial bearing of the driving screw is by the balancing piston guided in the bearing ring, simultaneously, the gap between balancing piston and bearing rings separates the pressure chamber from the sealing chamber. Sealing chamber and suction chamber are interconnected by way of a return gallery. Thus, independently of the delivery pressure at the shaft sealing, only the suction pressure becomes effective complete units being supplied, the connection pump and driving motor is by a pump connector with bracket. 2.2 Shaft sealing By means of a maintenance free mechanical seal of the unbalanced type. Material design for EX-20 mechanical seal 密封系列代号 动环 静环弹簧 动环/静环密封圈 动环外套 3EX YG6 石墨浸酚醛树脂 4Cr13 丁晴40,氟26 1Cr18Ni9Ti Series No. Rotory ring Stationary ring Spring Rotory, stationary, sealing ring Bush of rotory ring 3EX YG6 P.F resin with graphite 4Cr13 Acrylonitrilebutadiene resin40 Fluorine26 1Cr18Ni9Ti 注:5EX机械密封适用温度0~80℃,若80℃ ≤t ≤150℃ 请订购氟26的机械密封 2.3 安全阀:每台泵内部均配带起过载保护作用的随机安全阀,安全阀的全开启压力约高于泵工作压力的10%. 如果要求不同的开启压力,必须在订货单上标明. 2.4 滤器:为防止杂质进入泵工作机构,对于规格代号为10和20的SPF泵可提供装有径向滤网的随机滤器体,过滤粒度为0.4mm(相当于70目),进口处的压力真空表显示滤器内部压力.因此,可以确定在滤器上的压力损失,保证过滤正常. 2.5 电加热:对于带有滤器的泵,在输送高粘度介质时,可用加热盘对滤器体进行加热. Note: Suitable temperature for 5EX is 0-80℃. If your temperature is 80℃≤t≤150℃, please buy mechanical seal of fluorine 26. 2.3 Pressure relief valves As an overload protection installed in each pump is a pressure relief valve which with all designs, is set at a response pressure approx. 10% above the operating pressure. In case different response pressure are requested, you must be indicated in the order. 2.4 Filter: Which a view to protecting the against wear, it is recommended to install appropriatefilter in suction line for

10 and

20 of SPF pump. The mesh size or slot width resp. is determined by the operating conditions. The grain size is 0.4 mm (equal to 70X70 in each square inch). The pressure vaccum gauge in suction line indicats the pressure with in filter. Thus,determined the pressure losing, guaranteed screening properly. 2.5 Electric heating The filter space can be heated up by means of a heating collar when handling high viscosity medium for the screw pump with attached suction filter. 规格加热盘SPF10 220V 330V SPF20 220V 410V 2.6泵材料组合 零件名称 零件序号 材料泵体1HT20―40 衬套2LY12 前盖3HT20―40 后盖4HT20―40 滤器体盖 ①

7 HT20―40 滤器体①9HT20―40 轴承体10 ZL109 主、从动螺杆

12、13 16MnCrS5 滤油器①481 黄铜①仅对SPF……G……F而言

3、安装 SPF泵可安装在任何位置,为安全起见,立式安装时不允许电机在下,而泵在上.对于带有滤器的泵只允许卧式安装. 3.1 泵联接法兰及仪表接头 进口法兰PN16 GB2555―81 (DIN2533) 出口法兰PN40 GB2555―

81 (DIN2533) 接头: SPF…… : M1M2接压力表 Size Heating collar SPF10 220V 330V SPF20 220V 410V 2.6 Material combination of pump Parts name Parts No. Material Pump casing

1 HT20―40 Casing insert

2 LY12 Driving side cover

3 HT20―40 end side cover

4 HT20―40 filter cover ①

7 HT20―40 Filter casing ①

9 HT20―40 bearing housing

10 Z........