The gdl vertical multi-stage pipeline centrifugal pump is a new generation product designed and manufactured in accordance with the JB/TQ6435-92 standard on the basis of foreign excellent pumps, combined with user requirements and fire protection standards. The seal uses wear-resistant mechanical seals, and the suction and discharge outlets of the pipeline pump are located on the same straight line. The rotor components are composed of shaft, impeller, impeller stop sleeve, shaft sleeve and other parts, and the water inlet section, middle section and water outlet section are connected by tension bolts. The shaft seal adopts a mechanical seal, and is lubricated and cooled by pressure water in the balance chamber. It is the best pump type for the transportation of cold and hot water or physical and chemical properties similar to water and other liquids in major industries.
Maintenance and maintenance of gdl vertical multistage pipeline centrifugal pump in operation
1. The water inlet pipe must be highly sealed, and no water or air leakage;
2, prohibit long-term operation of the GDL multi-stage pipeline pump in the cavitation state;
3. It is forbidden for the GDL type multi-stage pipeline pump to run in large flow conditions and the motor runs for a long time with overcurrent;
4. Regularly check the motor current value during pump operation, and try to make the pump run within the range of design conditions;
5, GDL-type multi-stage pipeline pumps should be supervised by special personnel during operation to avoid accidents;
6, GDL type multi-stage pipeline pump should refuel the bearings every 500 hours of operation;
7. After long-term operation of the GDL multi-stage pipeline pump, due to mechanical wear, the noise and vibration of the unit will increase. It should be shut down for inspection. It is necessary to replace the wearing parts and bearings. The overhaul period of the unit is generally one year.
gdl type vertical multi-stage pipeline centrifugal pump mechanical seal maintenance and maintenance
1. The mechanical seal lubricant should be clean and free of solid particles;
2, it is strictly forbidden to work under dry grinding conditions with mechanical seals;
3. Before starting, the multi-stage pipeline pump (motor) should be rotated for a few turns to avoid sudden start and damage to the mechanical seal.
