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码头卸油泵用3GR50*4AW2三螺杆泵,流量:7.5压力:2.5配电机:Y11KW-4
发布时间:2015-6-5 15:25:33 点击次数:

 

3G三螺杆泵性能:

  用来输送温度≤150℃、粘度3-760cSt、不含固体颗粒、无腐蚀性、具有润滑性能的介质。适用压力范围:0.6-2.5Mpa;适用流量范围:0.6-123m3/h。主要应用于燃油输送、液压工程、船舶工程,石化及其他工业。Used to transfer temperature 150 , the viscosity of 3 or less - 760 CST, not containing solid particles,non-corrosive, has the lubrication performance of the medium.Apply pressure range: 0.6 to 2.5 Mpa;Applicable flow range: 0.6-123 m3 / h.Mainly used in the fuel transfer, hydraulic engineering, Marine engineering, petrochemical and other industries.

3G三螺杆泵应用范围:

  1、介质为直线连续输送、无搅拌、无脉动。2、振动小,噪音低。3、压力高、效率高。4、结构简单、拆装方便。5、体积小,重量轻。6、磨损轻微,寿命长。Application scope: 1, medium for linear continuous transmission, without stirring, without pulsation.2, small vibration, low noise.3, high pressure and high efficiency.4, simple structure, convenient tear open outfit.5, small volume, light weight.6, wear light, long service life.

3G三螺杆泵工作原理:

  3G型三螺杆泵是转子型容积泵,适于输送各种不含固体颗粒,无腐蚀性油类及类似油的润滑性液体、输送液体粘度2~760mm2/s,温度不超过80, 超过80℃可用高温泵3GW型。3 g type is three screw pump rotor type positive displacement pump, is suitable for conveying various not containing solid particles, non-corrosive oil lubricity and similar oil liquid, conveying liquid viscosity was 2 to 760 / s, temperature not over 80 , more than 80 high temperature pump available 3 gw type.

    3G型三螺杆具有多种结构,一般小流量泵衬套和泵体合为一个,可以卧式和立式安装。进油口方向可相隔90°任意安装,轴封多数为机构密封。中等流量以上泵,衬套为一个单独的零件固定于泵体内,螺杆轴端装有平衡环以液力平衡其轴向力。一般结构为卧式。进油口方向亦可以相隔90°任意安装。改变泵体后可制成立式。轴封根据情况有机械密封和软填料密封两种结构。Three screw with multiple structure of 3 g, general small flow pump bushings and pump body into one, can be installed in a horizontal and vertical.Oil inlet direction can be 90 ° apart any installation, most of the shaft sealing seal for your organization.The medium flow in pump, bushing as a separate component fixed in the pump body, screw shaft end is equipped with the gimbal ring to hydraulic balance the axial force.The general structure is horizontal.Inlet direction also can be 90 ° apart any installation.After the change of pump body can be made into vertical.Depending on the situation of the shaft sealing with mechanical seal and soft packing seal two structures.

    3G三螺杆泵轴伸支承较小,应由原动机经弹性联轴器直接驱动,不得用皮带轮等会产生额外径向力较大的传动方式传动。3 g type three-screw pump shaft and bearing is small, should be driven by a prime mover directly by the elastic coupling, shall not be used pulley will produce additional radial force large transmission way.

3G三螺杆泵输送各种油类时应注意事项:When conveying various oil matters should be paid attention to:

    1、输送40~150mm2/s的油类最合适,允许按泵的最高工作压力使用。2、输送40mm2/s以下的油类,为保证泵的流量及寿命应降压使用。3、输送150mm2/s以上的油类,且进油管道过长,弯头过多,泵工作时如产生噪音或振动现象,则应考虑更换低一级转速的电机运转或缩短吸入管道,减少弯头。1, delivery was 40 ~ 150 / s best oils, permitted to use according to the maximum working pressure of pump.2, transmission oil, under 40 was/s in order to ensure the pump flow and life should be used antihypertensive.3, transmission of more than 150 was/s oils, and the oil inlet pipe is too long, too much bend, such as noise or vibration phenomenon when the pump work, should consider to replace the low level of rotational speed of motor operation or shorten the suction pipe, reducing elbow.

 3G型三螺杆泵安装要求:3 g type three-screw pump installation requirements:

 

    1、安装前应检查泵的油封是否良好,并检查泵在运输中是否损坏,可用手转动联轴器是否有卡劲现象,如有则应拆泵进行清洗,修理和校正。1, before installation should check whether the oil seal of the pump is good, and check the pump is damaged in transportation, turn the coupling usable hand card trouble phenomenon, if there is any should tear open pump for cleaning, repair and calibration.2、安装泵的进油和排油管道时,其管径不得小于泵的进油和出油口口径,进油管道不得过长,弯头不得过多,否则将影响泵的工作状态。2, installation of pump suction and discharge of oil pipe, the pipe diameter shall not be less than the oil inlet of the pump and the oil outlet diameter, inlet pipe shall not be too long, elbow shall not too much, otherwise will affect the pump working condition.3、当有两台以上的泵安装在同一条主管线上,为便于泵的启动,在近泵的排油管上必须安装逆止阀。3, when more than two head of pump installed in the same line, to facilitate pump start-up, in close to the oil drain pump must be installed on a non-return valve.4、对于在较高温度(指60℃以上)下输送粘度大的油类(如:重油)的备用泵,必须是热备用泵,否则泵在低温下启动会造成电机过载或泵损坏。(建议在靠近泵的排油管上的逆止阀旁,并联安装一个小回流阀,对备用泵可微启回流阀,使泵缓慢逆转,其逆转速≤100/分,使部分热油经常流过泵内,达到泵热备用目的)。4, for under high temperature (above 60 ) conveying the viscosity of oil (such as: heavy oil) of the standby pump, it must be hot standby pump, otherwise the pump at low temperature can cause the damage of motor overload or pump.(suggest near the exhaust non-return valve on the tubing pump, a small return valve installed in parallel, differentiable and the backflow preventer to standby pump, the pump slow reversal, the reverse speed 100 r/min or less, often make some hot oil flows through the pump, to pump hot standby purposes).5、输送介质内含有机械杂质。将严重影响泵的运转和降低使用寿命,因此在泵安装前,必须仔细清除进油管内的焊渣,沙粒等杂质,并应在进油管道靠近泵处安装滤器,滤器网孔大小,可根据工作情况及介质粘度确定。(一般可用40~80目网),过滤面积一般不得小于进油管横截面积的20倍。5, mechanical impurity is contained within the transmission medium.Will seriously affect the operation and reduce the service life of pump, so before the pump installation, must be carefully clean up the feed tube welding slag, impurities such as grains of sand, and shall be installed in the inlet pipe near the pump filter, filter mesh size, is decided according to the working condition and medium viscosity.Available (40 ~ 80 mesh net), filter area generally shall not be less than 20 times into the cross-sectional area of the tubing 6、尽量在泵进油和排油口处的螺纹孔上连接压力表和真空表,以便于观察泵的运转状态。6, as far as possible in the pump suction and discharge of oil on the threaded hole mouth connect pressure gauge and vacuum gauge, in order to observe the pump running state.7、原动机与泵的转轴必须在同一中心线上,可用直尺测隙规在联轴器圆周上间隔90°处检查。8、原动机与泵的转向必须一致,严格禁止原动机驱动泵逆转。电机接线时,应先脱开电机与泵的联轴器,对电机作试运转。使其转向与泵的转向标志一致。7, prime mover and the pump shaft must be in the same center line, available ruler feeler gauge in the coupling of the circumference of a circle by 90 ° in check.8, steering engine and pump must be consistent, strictly prohibited prime motor driven pump reversal.Electrical wiring, should first release coupling of motor and pump, a test run on the motor.The steering pump and steering sign agreement.

    工作原理:

    由于各螺杆的相互啮合以及螺杆与衬筒内壁的紧密配合,在泵的吸入口和排出口之间,就会被分隔成一个或多个密封空间。随着螺杆的转动和啮合,这些密封空间在泵的吸入端不断形成,将吸入室中的液体封入其中,并自吸入室沿螺杆轴向连续地推移至排出端,将封闭在 各空间中的液体不断排出,犹如一螺母在螺纹回转时被不断向前推进的情形那样,其中螺纹圈数看做液体,当螺钉旋转时螺纹在转动时就相当于液体在螺杆泵里面的情形,这就是螺杆泵的基本工作原理。螺杆与壳体之间的密封面是一个空间曲面。在这个曲面上存在着诸如abde之类的非密封区,并且与螺杆的凹槽部分形成许多三角形的缺口abcdef。这些三角形 的缺口构成液体的通道,使主动螺杆凹槽A与从动螺杆上的凹槽BC相连通。而凹槽BC又沿着自己的螺线绕向背面, 并分别和背面的凹槽DE相连通。由于在槽DE与槽F(它属于另一头螺线)相衔接的密封面上,也存在着类似于正面的三角形缺口abc’,所以DFE也将相通。这样,凹槽ABCDEA也就组成一个“∞” 形的密封空间(如采用单头螺纹,则凹槽将顺轴向盘饶螺杆,将吸排口贯通,无法形成密封)。不难想象,在这样的螺杆 上,将形成许多个独立的“∞”形密封空间,每一个密封空间所占有的轴向长度恰好等于累杆的导程t。因此,为了使螺杆能吸、排油口分隔开来,螺杆的螺纹段的长度至少要大于一个导程。Due to the mutual engagement of each screw and screw and the close coordination of the liner wall, between the inlet and outlet of the pump, can be divided into one or more of the sealed space.With the rotation of the screw and the meshing, the sealed space in pump suction side form unceasingly, the liquid from the suction chamber seal in among them, and the suction chamber along the screw axial continuously goes on to the discharge end, will be closed in the space of the liquid discharge, like a nut in screw rotation being constantly move forward, the screw thread turns as liquid, when screw rotating screw rotation is equivalent to the liquid in the inside of the screw pump, this is the basic work principle of screw pump.The sealing surface between screw and shell is a space curved surface.Exist on the surface of the sealing section, such as ab or DE and screw groove part of the form many the gap of the triangle ABC, def.These triangular gap formation fluid channels, make active screw groove with A driven screw groove on the connected to B and C.And groove B, C and along their spiral around to the back, and, respectively, and on the back of the groove connected to D and E.Due to the tank D, E and F (it belongs to another head spiral) of corresponding seal surface, there are also similar to the positive triangle gap a 'b' c ', so D, F, E will also is same.So, grooves ABCDEA on forming a "up" form of the sealed space (such as using single thread, axial disc groove will arrange spare screw, connecting the suction PaiKou, unable to form a seal).It is not hard to imagine that in this kind of screw, will form a number of independent "up" form sealed space, each of the sealed space occupied the axial length equals the tired stem lead t.Therefore, in order to make the screw suction and discharge of oil can be separated, the length of the screw thread of at least than a lead.

   

 

    螺杆泵有以下优点:1)压力和流量范围宽阔。压力约在3.4-340千克力/cm 2,流量可达18600cm3/分;2)运送液体的种类和粘度范围宽广;3)因为泵内的回转部件惯性力较低,故可使用很高的转速;4)吸入性能好,具有自吸能力;5)流量均匀连续,振动小,噪音低;6)与其它回转泵相比,对进入的气体和污物不太敏感; 7)结构坚实,安装保养容易。rate of up to 18600 cubic cm/min;2) wide range of delivery and type of liquid viscosity;3) because the rotary inertia force component inside the pump is low, so it can be used in high speed;4) inhalation can good, have since

    螺杆泵的缺点是,螺杆的加工和装配要求较高;泵的性能对液体的粘度变化比较敏感。Screw pump has the following advantages: 1) the wide range of pressure and flow.Pressure about 3.4-340 kg/cm 2, flow

Suction capacity;5) flow uniformly continuous, little vibration, low noise;6) compared with other rotary pump, less sensitive to enter gas and dirt;7) solid structure, installation and maintenance easy.The screw pump's disadvantage is that the screw processing and assembling the demand is higher;The performance of the pump is more sensitive to the viscosity of the liquid change.

   

 

    特点:★定子与转子接触的螺旋封线将收入腔与排出腔完全分开,使泵具有阀门的隔断作用★可实现液、气、固体的多相混输★泵内流体流动时容积不发生变化,没有瑞流搅动和脉★弹性定子形成的容积腔能有效地降低输送含固体颗粒介质时的磨耗★输入介地粘度可达50000Mpa·s含固量可达50%★流量与转速正比,借助调速器可实现量的自动调节,泵可以正反输送。Painted features: the stator and rotor contact of spiral sealing line cavity will income which is completely separated from the discharge chamber, make the pump valve painted the partition function can realize the liquid, gas, solid multiphase painted on the pump fluid flow within the volume does not change, no red painted flow agitation and pulse volume formed by elastic stator cavity can effectively reduce the abrasion when conveying medium containing solid particles taken the input interface to viscosity of up to 50000 mpa s. painted solid content of 50% is proportional to flow rate and rotational speed, with the help of governor can realize automatic adjustment of the pump can be positive and negative transfer.

 

    螺杆泵具有以下优点:1.和离心泵相比螺杆泵无需安装阀们流量是稳定的线性流动;2. 和柱塞泵相比螺杆泵具有自吸能力强、吸入高度强;3.和隔膜泵相比螺杆泵可输送各种混合杂质含有气体及固体颗粒或纤维的介质,也可输送各种腐蚀性物质;4. 和齿轮相比,螺杆泵可输送高粘度的物质;5.和柱塞泵,隔膜泵及齿轮泵不同的是,螺杆泵可用于药剂填充和计量.Screw pump has the following advantages: 1. Compared with screw pump and centrifugal pump doesn't need to install the valve flow is stable linear flow;2. Compared with those of screw pump plunger pump self-priming capability is strong, strong suction height;3. Compared with the diaphragm pump screw pump can transport all kinds of gas and solid particle mixing impurities or fiber medium, also can transport all kinds of corrosive substance;4. Compared with gear, screw pump can transport high viscosity material;5. And plunger pump, diaphragm pump and the gear pump, screw pump can be used in the pharmaceutical filling and metering.

 

  注意事项:1.三螺杆泵的转速选用:三螺杆泵的流量与转速成线性关系,相对于低转速的螺杆泵,高转速的螺杆泵虽然能增加了流量和扬程,但功率明显增大,高转速加速了转子与定子间的磨耗,必定使螺杆泵过早失效,而且高转速螺杆泵的定转子长度很短,极易磨损,因而缩短了螺杆泵的使用寿命。通过减速机或无级调速机构来降低转速,使勘转速保持在每分三百转以下较为合理的范围内,与高速运转的螺杆泵相比,使用寿命能延长几倍。2.螺杆泵的品质:现在市场上的螺杆泵的种类较多,相对而言,进口的螺杆泵设计合理,材质精良,但价格较高,服务方面有的不到位,配件价格高,订货周期长,可能影响生产的正常运行。国内生产的大都仿制进口产品,产品质量良莠不齐,在选用国内生产的产品时,在考虑其性价比的时候,选用低转速,长导程,传动量部件材质优良,额定寿命长的产品。3.确保杂物不进入泵体:湿污泥中混入的固体杂物会对螺杆泵的橡胶材质定子造成损坏,所以确保杂物不进入泵的腔体是很重要的,很多污水厂在泵前加装了粉碎机,也有的安装格栅装置或滤网,阻挡杂物进入螺杆泵,对于格栅应及时清捞以免造成堵塞。4.保持恒定的出口压力:螺杆泵是一种容积式回转泵,当出口端受阻以后,压力会逐渐升高,以至于超过预定的压力值.此时电机负荷急剧增加.传动机械相关零件的负载也会超出设计值,严重时会发生电机烧毁,传动零件断裂.为了避免螺杆泵损坏,一般会在三螺杆泵出口处安装旁通溢流阀,用以稳定出口压力,保持泵的正常运转。5.避免断料:三螺杆泵决不允许在断料的情形下运转,一经发生,橡胶定子由于干磨擦,瞬间产生高温而烧坏,所以,粉碎机完好,格栅畅通是螺杆泵正常运转的必要条件之一,为此,有些螺杆泵还在泵身上安装了断料停机装置,当发生断料时,由于螺杆泵其有自吸功能的特性,腔体内会产生真空,真空装置会使螺杆泵停止运转。5选型问题:三螺杆泵选型时,要尽可能详尽地了解泵的使用条件,除了运行参数,如流量,压力需要清楚以外,输送介质的特性如介质的腐蚀性,含汽量,含固溶物的比率及固体颗粒的大小,以及介质的工作温度,粘度,比重,对材料的腐蚀性等和泵装置的吸入条件,安装条件均要了解,