概述GENERAL
LDY型油泵系立式多级离心油泵，用以输送温度为0℃～80℃透平油。供汽轮机、制氧机以及辅助机械的强制油润滑和液压之用。主要用于集中油站中输送润滑油。
Model LDY oil pump is a vertical multi-staged centrifugal oil pump. It is used to deliver the turbine oil which the temperature is 0℃--80℃.Provide the steam turbine ,oxygeneratorand assists mechanical oil forcing lubricious the usefulness of the hydraulic pressure.
泵型号意义说明举例：
The explanation to pump type significance is given an example:
例：LDY25-30×3
L……立式For example：LDY25-30×3
L……The verticality
D……多级D……Multiple stage Y……离心油泵Y……Centrifugal oil pump
25……设计点流量25米3/时30……设计点单级扬程30米3……叶轮级数3级25……Capacity(m /h) 3 30……Head of stage(m) 3……Number of impeller
本系列立式多级离心油泵特点：泵的机体立式布置，泵座法兰安装在集中油站的油箱上面，占地面积少，结构紧凑，重量轻，解决了汽轮机、制氧机、压缩机、多级轴流风机等大型机械 装备集中油站油箱上辅助机械以及管路等在安装上的困难；使机房设备布置整齐、美观。由于
泵的叶轮、泵体浸入润滑油中，无须底阀装置，能够顺利地启动油泵；泵的轴承润滑不必外加 润滑油，由泵自行解决。泵的结构简单可靠、性能稳定、操作方便，使用寿命长，无泄漏。
This pump feature: The organism verticality of pump disposes, and it is little to cover an area of the area, in light weight and settlement the difficulty on the installation such as assists machinery and pipe route etc on the steam turbine or oxygenerator oil tank; it is orderly and beautiful to look at to make generator room equipment dispose. Since the impeller and pump body of pump is soaked in the oil, need not the valve device at bottom,and it is easy to start the oil pump; The lubricious unnecessary additional oil of the bearing of pump is solved by the pump self. The pump structure is simply reliable ,the function is stable , it is convenient to operate , longevity of service in
clusion and inclusion .
本厂还可以根据用户要求加工泵伸入油箱内的长短尺寸以适应各种容量油箱的需要。
This factory still can require on the basis of user the improvement pump to stretch in the oil tank
the right and wrong size in order to adapt the oil tank of various capacities.
结构说明STRUCTURE
泵由吸入段（吸入喇叭）、下壳、中壳、上壳（或由吸入段、中段、导叶、后段）、连接架、吐出管架、泵轴、叶轮构成；通过泵座将电机连接，泵轴与电机轴用爪型联轴器挠性连接传动。 吐出管安装在平板法兰上。整台机组可方便地垂直安装在用户的油箱上。详细资料可参考泵的
结构示意图及随机的泵总装图。
The pump is formed by pump cover (absorbing into the brass-wind instruments) ,middle shell,upper shell, joint frame,pump axle and impeller; Linking the electrical machine by pump base, pump axle and electrical machine axle is with the connection transmission of flexibility shaft b
y claw coupling. The discharge was installed on the dull and stereotyped flange. The pumping unit can be perpendicular installed convenient on the oil tank of user. Detailed material can be cons ulted the structure diagrammatic sketch of pump and random pump always to install the picture. The rotation direction of pump: Looking from the electrical machine direction.
泵的旋转方向：从电机方向看，泵作逆时针方向旋转。
The pump rotation direction: counterclockwise rotation seen from the motor end.
泵轴上装有两种型号轴承：轴承1为单列向心球轴承；轴承2为2只单列向心推力球轴承。
There are two kinds of bearings of type to the pump axle upper outer garment: the bearing 1 is for single-row radial ball bearing; The bearing 2 is 2 single-row radial thrust ball bearing.
泵主要零件材质：Ⅰ类——吸入段、下壳、中壳、上壳、叶轮、密封环为灰铸铁；
连接架为碳钢焊接件；泵轴为优质钢。
Ⅱ类——吸入段、下壳、中壳、上壳、中段、导叶、叶轮、后段为铸钢；
密封环为不锈钢；连接架为碳钢焊接件；泵轴为优质钢。
The major part material nature of pump:
1. Pump cover,impeller, middle shell,upper shell, sealing ring for gray cast iron; joint
frame is welded construction ,the pump axle is high-quality steel.
2. Pump cover,impeller, middle shell,upper shell is cast iron, sealing ring is stainless
steel; joint frame is welded construction ,the pump axle is high-quality steel.
安装和使用INSTALLATION AND OPERATION
1.泵的吸入口距离容器（油箱）底部≮150 mm；距容器壁≮100 mm。
1. Absorbing entrance of pump is apart from container (oil tank) bottom≮100mm; Container
wall≮200mm is apart from.
2.出油管路应另设支承，避免管路重量压在泵的连接架上。
2. Yielding oil pipe route should separately set up supporting, and avoiding pipe route weight
pc abs合金
presses on the joint frame flange of pump.
3.起动前应检查泵的转子是否灵活，泵内应无磨擦。电机转向应正确。
3. Whether the rotor that the pump should be checked before starting is flexibility, and pumps
that a person operating from within in coordination with outside forces does not have obstructing. The electrical machine turns to should be correctly.
4.为保证泵正常工作，油箱中液面必须高于首级叶轮流道中心线。
打火机设备4. The liquid face must be more than the impeller flow way centers line in the oil tank in order
to assure the normal work of pump.
5.为防止杂质进入泵内可在泵吸入口加装滤网。但要定期清理，避免堵塞。
5.In order to prevent the impurity coming into the pump, the filter net was installed on the pump
suction. But it should be checked up periodical to prevent stoppage.
6.检查泵的转向，用点动方法来测定电动机旋转方向。
6. Check. to see if the direction rotation,Determine the rotate direction of the motor.
7.泵的起动应在出口管路的闸阀关闭的情况下进行，达到正常转速后，略微打开出口管路
闸阀，并开启阀门到所需的工况运行，起动即告完成。
7. The gate valve of discharge piping should be turned off after the pump is started，When the
pump operated under normal revolutions, open the discharge piping gate valve a little, and the discharge gate valve has been opened until the required working conditio n is produced, the pump’s start will be finished.
8.轴承使用温度不超过80℃，轴承温升不超过50℃。
8. The temperature in bearing must not rise over 80℃, and the risen temperature of the bearing
磷酸氧钛钾don’t exceed 50℃.
9.泵运转中，如发现有异常声响时，应立即停车检查。
给排水在线
9. If abnormal sound is heard during operating, stop running to check.
故障原因及其解决办法 TROUBLES AND REMEDIES
故障
Troubles 原因 Causes 解决办法 Remedies 1.止回阀或叶轮堵塞。 1.检查止回阀及叶轮。 泵不吸油
2. 2.电机重新接线。 转向不对。
The pump does not pump
oil 1. non-return valve or impeller is plugged. 1.Check non-return valve and impeller. 2.Replace the terminal of the motor. 2. The direction of rotation is wrong 1.转速不足。 1．检查电源系统。 2．更换密封环。 3．拆检叶轮。 2.密封环磨损。 3.叶轮内存杂物。
4.装置扬程过高。
压力表有压力，但不出
油或流量很小。 4．重新选泵。 The pressure gage shows 1．Too low speed. 2．Excessive wear of seal ring. 3．Impeller is blocked. 4．Too high installation head. 1．泵流量超过规定的流量。 2．泵轴弯曲造成密封环磨损。
1． Check the power system.
2． Replace the seal ring.
3． Check impeller.
Pressure , discharges little oil. but no pump oil or 4． Replace the type of pump.aa187
1．检查流量并用闸阀调整流量。
2．检查密封环及轴的跳动、修理 电机发热，功耗大。 The motor gets too hot,
1.The pump capacity.
2.The seal ring was abrasion because 2. the pump shaft has been bend.
1．泵与电机轴线不同心。
2．转子不平衡。 capacity exceeds stipulate 1. Check the flow gauge and adjust the capacity with gate valve.
Check the seal ring and the
and there is much
consumption of power. straightness of the shaft. 1．调整泵与电机的同心度。 2．检查转子。 轴承过热，泵振动。
Overheating of bearing
and vibration of pump. 1.The concentricity between pump shaft 1.Adjust both axle in concentricity.
and motor shaft is not good..
柔翼无人机2. The cotoc isn’t balance. 2. Check the rotor.
性能曲线 CHARACTERISTICS
豫公网安备41160202000603
站长QQ:729038198
关于我们
投诉建议