输送化工废料渣泵用G40单螺杆泵

     单螺杆泵概述

　　单螺杆泵（helical rotor pump;single-screw pump;mono pump）属于转子式容积泵，它是依靠螺杆与衬套相互啮合在吸入腔和排出腔产生容积变化来输送液体的。Single screw pump (helical rotor pump; single - screw pump; mono pump) belongs to the rotor type positive displacement pump, it is depend on the screw meshing with liner on the discharge and suction cavity to conveying liquid volume change.它是一种内啮合的密闭式螺杆泵，主要工作部件由具有双头螺旋空腔的衬套（定子）和在定子腔内与其啮合的单头螺旋螺杆（转子）组成。It is a kind of method of pressurized screw pump, a main working parts by bushing has a double helix cavity (stator) and the stator cavity and its meshing single-head screw screw (rotor).当输入轴通过万向节驱动转子绕定子中心作行星回转时，定子 — 转子副就连续地啮合形成密封腔，这些密封腔容积不变地作匀速轴向运动，把输送介质从吸入端经定子 — 转子副输送至压出端，吸入密闭腔内的介质流过定子而不被搅动和破坏。When the input shaft through the universal joint drive making planets revolving around the center of the stator, rotor stator, rotor, vice is continuous mesh form sealed cavity, the seal chamber volume invariably uniform axial movement, the medium from the suction end of deputy to the stator, rotor pressure side, the suction medium sealed cavity through the stator without stirring and destruction.单螺杆泵分类：整体不锈钢单螺杆泵，轴不锈钢单螺杆泵。Single screw pump classification: overall stainless steel single screw pump, stainless steel shaft single screw pump.

　　螺杆具有单头螺纹，其任意截面皆为半径为R的圆，截面的中心位于螺旋线上且与螺杆的轴心线偏离一个偏心距e，绕轴旋转且沿轴向移动而形成的头数比Lobes：螺杆的定子的头数T1比转子的头数T2多一个，即T1=T2+1。Screw with a single thread, the arbitrary cross section of radius R the circle, the center of the cross section is located in a spiral line and screw axis deviation from an eccentricity e, pivoting and move along the axial and form Numbers than Lobes: screw the stator Numbers T1 one more than the rotor quotas T2 and T1 = T2 + 1.他们的比值成为头数比。The ratio of their specific lobe.螺杆泵可以分为单头（1：2）和多头（2：3，3：4）等。Screw pump can be divided into single head (2-1) and long (2:3, 3:4).头数比越多，螺杆泵的输出扭矩越大，转速越低。The more specific lobe, the greater the output torque of screw pump, the lower the speed.反之，输出的扭矩越小，转速越高。On the other hand, the output torque is smaller, the higher the speed.衬套内表面具有双螺纹，其任意截面为一长圆，两端是半径为R（等于螺杆截面半径）的半圆，中间是长为4e的直线段。Surface with double threads in the bushing, the arbitrary cross section for a long, both ends is radius R (equal to screw section radius) of semicircle, is long for a straight run of 4 e in the middle.衬套的任意截面都是相同的长圆，只是彼此互相错开一个角度。Bushing of arbitrary cross section are the same long, just each other stagger an Angle.螺杆装入衬套后，螺杆表面与衬套内螺纹表面之间形成一个个封闭的腔室，同时任意截面也被分成上下两个月牙形工作室。Screw into the bushing, between screw and bushing internal thread surface to form a closed chamber, and arbitrary cross section is divided into two crescent-shaped studio.当螺杆旋转时，靠近吸入室的第一个工作室的容积逐渐增大，形成负压，在压差的作用下液体被吸入工作室。When the screw rotates, the first studio near the suction chamber volume increases gradually, form the negative pressure, under the action of pressure difference, liquid drawn into the studio.随着螺杆的继续转动，工作腔容积不断增至Zui大后，这个工作室封闭，并将液体沿轴向推向压出室。As a continuation of the screw rotation, continuous working volume to maximum, the studio closed, pushed along the axial liquid and the pressure out of the room.与此同时上下两个工作室交替循环地吸入和排出液体，因此液体被连续不断地从吸入室沿轴向推向压出室。At the same time two studio cycle of suction and discharge liquid, so the liquid is continuously from the suction chamber along the axial direction to the pressure chamber.

　　单螺杆泵由于结构和工作特性Single screw pump due to the structure and working characteristic

　　与活塞泵离心泵、叶片泵、齿轮泵相比具有下列诸多优点：Piston pump and centrifugal pump, vane pump, gear pump compared with many of the following advantages:??? 1、能输送高固体含量的介质；1, the transmission of high solid content of media can;2、流量均匀压力稳定，低转速时更为明显； 2, flow uniform pressure stability, low speed is more obvious;3、流量与泵的转速成正比，因而具有良好的变量调节性；3, flow is proportional to the pump speed, thus has a good regulatory variables;4、一泵多用可以输送不同粘度的介质；4, a multi-purpose pump can transport different viscosity of medium;5、泵的安装位置可以任意倾斜；5, the installation position of the pump can be arbitrary oblique;6、适合输送敏感性物品和易受离心力等破坏的物品；6 items and the centrifugal force, etc, is suitable for conveying sensitivity damage items;7、体积小，重量轻、噪声低，结构简单，维修方便。7, small volume, light weight, low noise, simple structure, easy maintenance.

　　选用泵的规格是根据被输送液体的性质和流量、压力来决定的，而泵的转速则由输送液体的粘度和腐蚀性、作为主要参数来选择，才能保证泵可靠运行。Choose the specifications of the pump is according to the nature of the liquid to be delivered and decide the flow, pressure, while the pump speed by conveying liquid viscosity and corrosive, as the main parameter to select, to ensure the pump running.泵的设计转速为输送清水或清水相类似的无腐蚀性液体时允许Zui高转速，在实际使用中因介质性质与寿命要求不同，选用时一般都应低于设计转速。Design speed of pump for conveying water or similar without corrosive liquid to allow the highest speed in the water, in be used actually due to the different re, dielectric properties and service life when choosing generally should be lower than design speed.对高粘度和含颗粒介质，一般采用设计转速的1/2-1/3 或更低些，低转速对泵的磨损有利，但在使用后由于定子的磨损流量下降，这时可适当提高转速，以补偿流量下降也为常策。For high viscosity and particle medium, generally USES the design speed 1/2 - a third or more lower, low speed of pump wear and tear, but after use due to the wear and tear of the stator flow down, then can be appropriately increased speed, to compensate for declining to often.输送介质的温度应在 -10 ℃～80℃特殊情况可高达120℃。The temperature of the medium should be - 10 ℃ ~ 80 ℃ special circumstances can be as high as 120 ℃.

泵的每级（定子的一个导程）正常压力为 0.6Mpa，短时间（不超过30分钟）内允许高达0.8Mpa，当磨损后在相同输出压力时的容积效率要逐步下降。Pump per level (lead) of the stator of a normal pressure is 0.6 Mpa, inside short time (less than 30 minutes) to allow up to 0.8 Mpa, when after wear and tear on the same output pressure volumetric efficiency will decline gradually.泵送清水时Zui高吸程为 8米，实际使用建议不超过6.5米，当泵送高粘度介质时，应以正压吸入。When pumping water to the highest suction is 8 meters, the actual use suggest no more than 6.5 meters, when pumping high viscosity medium, the positive pressure breathing.