河北远东泵业制造有限公司  

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    ●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 generatepressure, it is only the output flow.Pressure is low or no pressure, highviscosity 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 toolarge or pressure too high, can cause stress Pressure gauge damage or pressuregauge orifice jams, of course, also could not show pressure, can change a newpressure 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 confirmedthat no flow pump output, could be turned to the pumps due to pump installationis wrong, wrong, or suction side (liquid into the mouth and suck liquidpipeline jam, export check valve installed backwards, or card is dead, it ispossible 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 ofproduced liquid, this phenomenon is often due to the slippage of the pump driveor insufficient power.Check the gear wheel pump at this time of the actualspeed, pump and motor connection and power matching, etc.

    ●高粘度泵在开始运转前，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 filledwith liquid, facilitate safe launch.If the environment temperature is belowfreezing, should advance to pump into the hot steam, preheating treatment, andthen to start the pump.The direction of rotation of the pump with highviscosity, oil outlet in accord.Gear pump is the first run, or long-term idlebefore using, had better under the condition of no load or small load to runone hour or so.If in the running-in stage in advance detect abnormaltemperature rise, leakage, vibration and noise, should stop check.High viscositygear pump bearing or flange should adopt a common drive motorinstallationFoundation, foundation, flange or support all needs to have enoughrigidity, to reduce the vibration of gear pump is running and noise.Motor andgear 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 shallnot be used, in order to avoid damage of the gear pump gearAnd other parts.Ifuse the belt wheel, wheel, etc, shall set bracket support, in case of drivinggear bearing by the radial force.Ground screw fastening gear pump, motor, screwforce should be uniform, reliable connection.Turn the coupling with the hand,should feel can easily turn the gear pump, no abnormal phenomenon such asclamping, 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 largeenough, and to avoid the narrow channel, or a sharp turn, reducing elbow,remove unnecessary valves, fittings, as much as possible to reduce theinstallation height of pump, shorten the length of the oil suction pipe, inorder to reduce the pressure loss.Components, such as pipe joint sealed well,in order to prevent the air intrusion, thus control air-pocket and theoccurrence of cavitation.Check valve and relief valve on the output of the gearpump tube had better install a check valve.In the overhaul pump and outputpipe, the system of fluid backflow will not occur.Gear pump to stop loadingmachine, can be in the output pipe to prevent pump reverse, and create apartial vacuum.It should be noted that the outlet check valve cannot beinstalled backwards or stuck.High viscosity of the pump outlet pipe also shallset up relief valve or other protective device on the road, so that once theclogging pump export channels, can open the relief valve pressure relief.Therelief valve can be cast and pump body and pump cover, also can separateassembly.For high viscosity gear pump need positive &negative, import andexport 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 gearpump, should be in lower power consumption, less leakage, under the pressure oflarge output the most traffic.When determining to conveying medium, we shouldstrictly follow the provisions of the product manuals on use manufacturersrecommend fluid as far as possible, and pay attention to consider the systemoperating temperature range.When you want to use in a wide temperature range,medium viscosity index should be higher.Medium is not only the energy transferintermediary, but also lubrication, sealing and heat transfer medium.Liquidviscosity is too high will increase internal friction resistance, lower outputpower, waste of energy, and generate high temperature system. High viscositygear pump outlet pipe shall set up relief valve or other protective device onthe road, so once the clogging pump export channels, can open the relief valvepressure relief.For high viscosity gear pump need positive &negative,import and export all needs to set up the line safety valve.

    1、工作压力的选定1, select the work pressure

　　高粘度泵额定的压力是指泵连续工作时的最高许用压力，而其工作压力则决定于外部负载，安装和调试的寿命与其工作压力直接相关。对于不频繁工作的齿轮泵，其工作压力可取为泵的额定压力，考虑到产品质量不同，最好将额定压力降低20%～30%使用。对于经常工作于较高压力下的齿轮泵，其工作压力应比泵的额定压力低1～2个压力级。石油化工设备常常是24小时连续运转，这时泵的工作压力应该取得比额定压力低得多，且工作转速也应该低于额定转速。如果高粘度齿轮泵的工作压力调整过高，则会使齿轮泵在超负荷下运行。High viscosity pump rated pressure refers to the maximum allowablepump continuous work pressure, and its working pressure is determined by theexternal load, installation and commissioning of life is directly related withwork pressure.For not frequent work gear pump, the working pressure isdesirable for the rated pressure of the pump, taking the quality intoconsideration, it is best to used pressure rated lower 20% ~ 30%.For often workunder high pressure gear pump, the working pressure shall be lower than therated pressure of the pump 1 ~ 2 pressure level.Petrochemical equipment areoften 24 hours of continuous operation, and at this time of the pump workingpressure should be obtained was much lower than the rated pressure, and thework speed should be lower than the rated speed.If the high viscosity gear pumphigh pressure adjustment, will make the pump running under overload.

　　2.安装与试运转2. Installation andcommissioning

　　高粘度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。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、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。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。齿轮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出异常温升、泄漏、振动和噪声时，应机检查。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。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 bearing or flange and its drive motor should usecommon installation basis, foundation, flange or support all needs to haveenough rigidity, to reduce the vibration of gear pump is running andnoise.Motor and gear pump with elastic shaft coupling, coaxial degree is lessthan 0.1 mm, Angle shall not be greater than 1 degree.When installing couplinghammer shall not be used, in order to avoid damage gear and other parts of thegear pump.If use the belt wheel, wheel, etc, shall set bracket support, in caseof driving gear bearing by the radial force.Ground screw fastening gear pump,motor, screw force should be uniform, reliable connection.Turn the couplingwith the hand, should feel can easily turn the gear pump, no abnormalphenomenon such as clamping, then can be piping.High viscosity gear pump oilsuction pipe diameter should be large enough, and to avoid the narrow channel,or a sharp bend, bend, remove unnecessary valves, fittings, as much as possibleto reduce the installation height of pump, shorten the length of the oilsuction pipe, in order to reduce the pressure loss.Components, such as pipejoint sealed well, in order to prevent the air intrusion, thus controlair-pocket and the occurrence of cavitation.Before starting operation, to gearpump casing filled with liquid, easy to safety.If the environment temperatureis below freezing, should advance to pump into the hot steam, preheatingtreatment, and then to start the pump.Direction of rotation of the gear pump,oil outlet in accord.Gear pump is the first run, or long-term idle beforeusing, had better under the condition of no load or small load to run one houror so.If in the running-in stage in advance the abnormal temperature rise,leakage, vibration and noise, should machine inspection.High viscosity of thepump outlet pipe also shall set up relief valve or other protective device onthe road, so that once the clogging pump export channels, can open the reliefvalve pressure relief.For high viscosity gear pump need positive &negative,import and export all needs to set up the line safety valve.

    ●如何选型Howto choice

    选择高粘度泵时应该注意泵所输送的具体粘度、工作温度、介质比重、介质成分等等，只有更好的了解高粘度泵所输送的介质情况才能更好的选择所需要的高粘度泵产品。

Should be paid attention to when selecting highviscosity pump pump delivery by the specific viscosity, working temperature,the proportion of medium, medium composition etc., only a better understandingof the high viscosity pump transmission medium condition can better choose therequired high viscosity pump product.

　　第一、必须了解高粘度泵所输送的介质粘度。因为介质粘度的高低直接影响到选择高粘度泵的转速。mustunderstand the high viscosity pump transmission medium viscosity. Because themedium viscosity directly affects the choice of high viscosity pump speed.

　　第二、了解高粘度泵所输送介质的性质，例如有没有腐蚀性。understand the nature of thehigh viscosity pump conveying medium, such as corrosive.

　　第三、高粘度泵所输送的介质浓度多少、比重多少。 high viscosity pump how far theconveying medium concentration, specific gravity.

Fourth,

　　第四、高粘度泵所输送的介质。high viscosity pump transmission medium.

　　第五、高粘度泵输送的介质常温下是否结晶或凝固。the high viscosity pump whetherthe medium temperature of crystallization or coagulation.

　　第六、高粘度泵所输送的介质是否有悬浮物。the transmission medium for highviscosity pump suspension.

　　第七、高粘度泵所输送介质受温度变化情况。high viscosity pump conveying mediumaffected by temperature changes.

　　第八、高粘度泵所输送介质的润滑性、清洁度、腐蚀性等。high viscosity pump medium bylubricity, cleanliness, corrosion resistance, etc.

　　第九、高粘度泵要求进口压力及出口压力和安装高度。 high viscosity pump inletpressure and outlet pressure and the installation height.

　　第十、高粘度泵使用场合的防爆要求。high viscosity pump occasions ofexplosion-proof requirements.