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高粘度液体泵用NYP110高粘度泵配XWD11KW-7-29 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
发布时间:2015-5-24 15:06:18 点击次数: | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
●高粘度泵优点: 转子泵的轴向位置可调,不需要拆泵。 泵采用模块化设计,可根据不同的使用要求更换不同部件。可选夹层结构,以方便对泵加热或冷却,可以选择是否带安全阀,可以选择不同的密封形式,详见密封结构图。泵的各个零件可以选用不同的材质以适应具体使用要求。 不同的使用条件,泵的结构形式可能不同,具体应用请向厂家或本公司客户代表咨询。需要指出的是泵的转速愈高,泵的磨损愈严重,液体中如含有磨料物质,泵的材料应选用耐磨材质,在此种工况下,泵的压力和转速都应降低,高温条件下,则应增加泵的间隙,并采用耐热材料 。 流动稳定:流量与齿轮转速成正比,与压力无关 流动平稳:没有脉动和压力波峰,不会产生管道颤动。 多功能性:仅仅通过调整转子轴的位置,同一台泵既可以出来稀释溶液又可以出来沥青,糖浆,树脂,聚合物等高粘度液体。 可逆性:可以通过改变齿轮的旋转方向使液体反向流动,两种方向都能充分发挥泵的性能 自吸性:由泵产生高真空,允许在最大自吸高度实现快速自吸,取决于泵送液体的物理特性(温度,蒸汽压力,粘度等)。 建议性:只有两个活动部件:主动轮和动轮,只有一个轴封。 坚固的重载结构:低转速。特大球轴承的外部轴承座可以承受轴向和径向负载。 磨损率低:由于主动轮和从动齿轮不成倍数关系。这就意味着磨损可以被均匀的分散在每个齿轮上。因为一个齿轮上的每一个齿轮接触另一个齿轮上的每一个齿轮的次数一样。 磨损调节系统:转子边缘的磨损可以通过调整转子轴的位置来补偿。这样,即使在有相当大的磨损的情况下,也可以保证泵的稳定性。 维护简单,维护率低:不用移动泵,管道或泵驱动装置就可以进行检查和调节。 互动性:标准组件的设计可实现不同材料和特性零部件之间的替换。例如:有多种轴封系统可供选择,还可以安装带夹套的外壳和轴盖来代替标准部件。 端口位置可改变:泵壳可在轴承箱上旋转以从不同位置处吸排液体。 预热:加热夹套或是与外壳铸成一体,或是安装在端盖上,或是安装在填料压盖上。 旁路安全阀:旁路安全阀安装在泵上并且容易调节,在有些型号的泵上采取双重安全阀并带加热夹套。 ●NYP高粘度泵的进出口 泵进出口的型式 常规泵进出口尺寸相同,进出口呈垂直布置,从驱动机向泵头方向看为右进上出。也可根据客户需要,加工成水平进出口型或左进上出型。连接方式有法兰型和螺纹型. 泵进出口负荷 泵在安装时,应限制泵的进出口所承受的管路负荷。螺纹联接的管接头不得承受负荷,否则会使泵的联接管产生松动或旋紧力矩(管螺纹联接处不允许有旋紧或松动的扭矩,以免)影响管路的联接效果。 ●NYP高粘度泵的起动 泵在起动过程中应特别注意以下几个问题: 起动前要检查下列内容: 检查泵、齿轮箱和电机的对中程度; 检查过滤器中有没有焊皮和金属渣; 检查各连接部位连接是否紧固; 检查管路压在泵上的力和力矩是否超过给定的数值,如果温度较高,还应检查管路是否有膨胀节; 检查电气连接的正确性及电机的额定值,并检查电机转动方向是否正确; 检查泵的转动方向是否正确; 如有安全阀,安全阀安装必须正确, 检查泵轴是否转动灵活; 泵的内部不能是干的,特别是需要自吸的时候,应向泵内灌注一些油或输送的液体; 泵组装时在零件的表面有防护液,如果这种液体不能和泵送液体相容,则必须清洗; 最好在管路上安装压力表和真空表,方便观察泵的工作状态; 检查机械密封箱是否注满液体; 检查管路的阀门是否打开; 如果用内燃机驱动,请在起动发动机前保持离合器脱开; 泵起动后,检查液体是否进入到泵中,泵是否工作正常,如果长时间无液体进入泵中,应停机检查泵及管路。 ●高粘度齿轮泵并不能产生压力,它只是输出流量。压力低或无压力,说明高粘度齿 轮泵没有吸入液体或泄漏严重。High viscosity gear pump does not generate pressure, it is only the output flow.Pressure is low or no pressure, high viscosity gear wheel pump don't inhale the liquid or leakage is serious. 电动机输出功率偏小、齿 轮泵排量选得过大或压力调得过高时,也会造成压力不足 当然,压力表损坏或压力表节流孔堵塞时也显示不出压力,此时可换装一个新的压力表检查。Small motor output power, gear wheel pump capacity to choose too large or pressure too high, can cause stress Pressure gauge damage or pressure gauge orifice jams, of course, also could not show pressure, can change a new pressure gauge to check at this time. 如果确认泵无流量输出,可能是由于泵安装有误、泵的转向不对,或吸人侧(进液口及吸液管道)堵塞、出口止回阀装反或卡死了,也有可能是驱动轴断裂了。If confirmed that no flow pump output, could be turned to the pumps due to pump installation is wrong, wrong, or suction side (liquid into the mouth and suck liquid pipeline jam, export check valve installed backwards, or card is dead, it is possible that the drive shaft fracture. 高粘度泵在转速过低时会引起出液量不足,这种现象往往是由于泵的驱动装置打滑或功率不足所致。此时应检查齿 轮泵的实际转速、泵与电动机的联接及功率匹配情况等。High viscosity pump in low speed can cause insufficient quantity of produced liquid, this phenomenon is often due to the slippage of the pump drive or insufficient power.Check the gear wheel pump at this time of the actual speed, pump and motor connection and power matching, etc. ● 高粘度泵开机准备 在开始运转前,往齿轮泵的壳体内灌满待输送的液体,便于安全启动。若环境温度低于冰点,应预先向泵内通入热蒸汽,进行预热处理,然后才可启动齿轮泵。高粘度泵的旋转方向要与进、出油口相符。齿轮泵若是第一次运行,或长期闲置后再使用,最好在空载或小负荷情况下先跑合一小时左右。如果在跑合阶段预先觉察出异常温升、泄漏、振动和噪声时,应停机检查。高粘度齿轮泵的支座或法兰与其驱动电机应采用共同的安装基础,基础、法兰或支座均需具有足够的刚度,以减小齿轮泵运转时产生的振动和噪声。电动机与齿轮泵须用弹性联轴器连接,同轴度小于0.1毫米,倾斜角不得大于1度。安装联轴器时不得用锤敲打,以免伤害齿轮泵的齿轮等零件。若用带轮、链轮等驱动时应设托架支承,以防主动齿轮轴承受径向力。紧固齿轮泵、电动机的地脚螺钉时,螺钉受力应均匀,连接可靠。用手转动联轴器时,应感觉到齿轮泵能够轻松地转动,没有卡紧等异常现象出现,然后才可以配管。High viscosity pump before starting work, to gear pump casing filled with liquid, facilitate safe launch.If the environment temperature is below freezing, should advance to pump into the hot steam, preheating treatment, and then to start the pump.The direction of rotation of the pump with high viscosity, oil outlet in accord.Gear pump is the first run, or long-term idle before using, had better under the condition of no load or small load to run one hour or so.If in the running-in stage in advance detect abnormal temperature rise, leakage, vibration and noise, should stop check.High viscosity gear pump bearing or flange should adopt a common drive motor installationFoundation, foundation, flange or support all needs to have enough rigidity, to reduce the vibration of gear pump is running and noise.Motor and gear pump with elastic shaft coupling, coaxial degree is less than 0.1 mm, Angle shall not be greater than 1 degree.When installing coupling hammer shall not be used, in order to avoid damage of the gear pump gearAnd other parts.If use the belt wheel, wheel, etc, shall set bracket support, in case of driving gear bearing by the radial force.Ground screw fastening gear pump, motor, screw force should be uniform, reliable connection.Turn the coupling with the hand, should feel can easily turn the gear pump, no abnormal phenomenon such as clamping, then can be piping. 高粘度齿轮泵的吸油管道内径应足够大,并避免狭窄通道或急剧拐弯、减少弯头,去除不必要的阀门、附件,尽可能地降低泵的安装高度,缩短吸油管道的长度,以减少压力损失。管接头等元件的密封要良好,以防止空气侵入,从而控制气穴与气蚀的发生。止回阀与安全阀在齿轮泵的输出管路上最好安装一个止回阀。这样在检修泵及输出管道时,系统中的液体不会发生倒流。齿轮泵带负荷停车时,亦可防止泵倒转而在其输出管道内产生局部真空。应当注意,出口止回阀不能装反或出现卡死现象。高粘度泵的出口管路上还应当设置安全阀等保护装置,这样一旦泵的出口通道发生堵塞,就可以打开安全阀卸压。安全阀可以与泵体或泵盖铸成一体,也可以单独装配。对于需要正反转的高粘度齿轮泵,其进出口管路上均需设置安全阀。High viscosity gear pump oil suction pipe diameter should be large enough, and to avoid the narrow channel, or a sharp turn, reducing elbow, remove unnecessary valves, fittings, as much as possible to reduce the installation height of pump, shorten the length of the oil suction pipe, in order to reduce the pressure loss.Components, such as pipe joint sealed well, in order to prevent the air intrusion, thus control air-pocket and the occurrence of cavitation.Check valve and relief valve on the output of the gear pump tube had better install a check valve.In the overhaul pump and output pipe, the system of fluid backflow will not occur.Gear pump to stop loading machine, can be in the output pipe to prevent pump reverse, and create a partial vacuum.It should be noted that the outlet check valve cannot be installed backwards or stuck.High viscosity of the pump outlet pipe also shall set up relief valve or other protective device on the road, so that once the clogging pump export channels, can open the relief valve pressure relief.The relief valve can be cast and pump body and pump cover, also can separate assembly.For high viscosity gear pump need positive &negative, import and export all needs to set up the line safety valve.
高粘度泵是输送高粘度液体的齿轮泵,应做到在较低的功耗、较少的泄漏、较大的压力下输出最多的流量。在确定所要输送的介质时,应该严格遵循产品说明书上的规定,尽量使用厂家推荐的流体介质,并注意考虑系统的工作温度范围。当希望在某一较宽的温度范围内使用时,输送介质的粘度指数应该高些。输送介质不仅是能量传递的中介,而且也是润滑、密封及传热介质。液体粘度过高会增加内摩擦阻力,降低输出功率,浪费能量,并产生过高的系统温度.高粘度齿轮泵的出口管路上应当设置安全阀等保护装置,这样一旦泵的出口通道发生堵塞,就可以打开安全阀卸压。对于需要正反转的高粘度齿轮泵,其进出口管路上均需设置安全阀。High viscosity pump is conveying liquid with high viscosity gear pump, should be in lower power consumption, less leakage, under the pressure of large output the most traffic.When determining to conveying medium, we should strictly follow the provisions of the product manuals on use manufacturers recommend fluid as far as possible, and pay attention to consider the system operating temperature range.When you want to use in a wide temperature range, medium viscosity index should be higher.Medium is not only the energy transfer intermediary, but also lubrication, sealing and heat transfer medium.Liquid viscosity is too high will increase internal friction resistance, lower output power, waste of energy, and generate high temperature system. High viscosity gear pump outlet pipe shall set up relief valve or other protective device on the road, so once the clogging pump export channels, can open the relief valve pressure relief.For high viscosity gear pump need positive &negative, import and export all needs to set up the line safety valve.
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