GC boiler feed pump feed pump production

Puhou Pump Industry's spot GC boiler feed pump direct sales $n shaft is made of high-quality carbon steel, with an impeller installed in the middle, fixed on the shaft with keys, shaft sleeves, and shaft sleeve nuts. One end of the shaft is equipped with a coupling component and directly connected to the motor. When viewed from the direction of rotation, the pump shaft rotates in the direction of the needle. The sealing ring is made of cast iron to prevent high-pressure water from leaking back into the inlet section of the water pump. It is fixed in the inlet and middle sections respectively and is a vulnerable part. It can be replaced with spare parts after wear and tear.

　　Pu Hou Pump Industry in stockGC boiler feedwater pumpMaintenance and upkeep methods:

1. Check for any looseness at the joints of the horizontal multi-stage centrifugal pump and pipelines. Rotate the pump by hand to see if it is flexible, and then try to check the direction of the motor rotation.

2. Add bearing lubricating oil to the suspension and observe that the oil level is between the two markings on the oil gauge.

3. Unscrew the water inlet plug of the pump body and fill it with water.

4. Close the gate valve of the outlet pipe, the outlet pressure gauge, and the inlet vacuum gauge.

5. Start the motor, when the pump is running normally, check the outlet pressure gauge and inlet vacuum gauge, and gradually open the gate valve according to the appropriate pressure displayed. At the same time, check the load condition of the motor.

6. Try to control the flow rate and head of the pump within the range indicated on the label of the horizontal multi-stage centrifugal pump, ensuring that the pump operates near the high-efficiency point in order to achieve the maximum energy-saving effect.

7. During the operation of a horizontal multi-stage centrifugal pump, the temperature rise of the bearings should not exceed 35 degrees Celsius of the ambient temperature, and the maximum temperature should not exceed 80 degrees Celsius.

8. If any abnormal noise is found in the horizontal multi-stage centrifugal pump, it should be stopped immediately to check the cause.

9. When the horizontal multi-stage centrifugal pump needs to be stopped, first close the gate valve and pressure gauge, and then stop the motor.

10. The horizontal multi-stage centrifugal pump needs to replace the lubricating oil after 100 hours of operation within * months. Change the oil every 500 hours in the future.

11. Regularly adjust the packing gland to ensure normal dripping inside the packing chamber.

12. When using a horizontal multi-stage centrifugal pump in the cold winter season, after parking, the drain plug at the bottom of the pump body must be unscrewed to drain the water completely to prevent freezing and cracking.

13. When the horizontal multi-stage centrifugal pump is stopped, the pump must be completely disassembled, wiped dry, and the rotating parts and joints coated with grease and properly stored.

The GC boiler feedwater pump is a horizontal single suction multi-stage segmented centrifugal pump, mainly used for boiler feedwater, so it is also known as the boiler feedwater pump. This series of boiler feedwater pumps is suitable for conveying clean water with a temperature below 110 ° C or other non corrosive liquids with physical and chemical properties similar to water. It is widely used for boiler feedwater in industrial and mining enterprises and institutions, as well as urban domestic water supply. The GC series pump is particularly suitable for boiler feedwater, and can also be widely used in various industries such as pressure vessel water supply, hot water circulation, high-rise building water supply, farmland irrigation, fire boosting, hydraulic flushing, food, brewing, medicine, chemical industry, aquaculture, environmental protection, chemical process and machine tool matching, as a power equipment for water supply and drainage.

structure

The main components of GC boiler feed pump include shaft, shaft sleeve, inlet section, impeller, guide vane, sealing ring, middle section, outlet section, balance ring, balance disc, and tail cover.

The inlet section, middle section, outlet section, and tail cover are all made of cast iron, forming the working chamber of the pump together.

The impeller is made of cast iron and has blades inside. The liquid enters on one side along the axial direction. Due to the unequal pressure on the impeller before and after, there must be an axial force, which is borne by the balance plate. The impeller is manufactured through static balance testing.

The shaft is made of high-quality carbon steel, with an impeller installed in the middle, fixed on the shaft with keys, shaft sleeves, and shaft sleeve nuts. One end of the shaft is equipped with a coupling component and directly connected to the motor. When viewed from the direction of rotation, the pump shaft rotates in the direction of the needle.

The sealing ring is made of cast iron to prevent high-pressure water from leaking back into the inlet section of the water pump. It is fixed in the inlet and middle sections respectively and is a vulnerable part. It can be replaced with spare parts after wear and tear.

The balance ring is made of cast iron and fixed on the outlet section. It, together with the balance plate, forms the balance device.

The balance plate is made of wear-resistant cast iron and is installed on the shaft, located between the water outlet section and the tail cover, to balance axial forces.

The shaft sleeve is made of cast iron and located at the two packing chambers, used to fix the impeller and protect the pump shaft. For vulnerable parts, they can be replaced with spare parts after wear and tear.

The bearing is a single row radial ball bearing lubricated with calcium based grease.

The packing seal consists of a packing chamber on the inlet section and tail cover, a packing gland, a packing ring, and packing, etc. A small amount of high-pressure water flows into the packing chamber to provide a water seal. The tightness of the filler must be appropriate, neither too tight nor too loose, based on the liquid being able to seep out drop by drop. If the packing is too tight, the shaft sleeve is prone to heating and consuming power. The packing is too loose, which reduces the efficiency of the water pump due to liquid loss.

operation control

(1) The pH value of the absorption tower slurry is the core of the wet desulfurization system reaction process. Increasing the pH value of the slurry and adjusting the desulfurization operating parameters in a timely manner due to excessive slurry density can easily cause scaling on the pipe wall or hinder the inlet filter screen. Therefore, it is necessary to analyze the parameter status through data analysis to maintain it in an optimal state.

(2) Operators should improve their operational skills and equipment inspection quality. When the slurry circulation pump is stopped, pipeline flushing should be strengthened to prevent residual slurry in the pipeline. During equipment inspection, carefully observe the oil level, oil quality, cooling water return flow rate, and equipment appearance. Use thermometers and vibration meters to measure the temperature and vibration of the equipment. If any abnormalities are found in the equipment, decisive measures should be taken, such as adding lubricating oil to the bearing box or switching to the standby pump for operation. During the pump shutdown period, maintenance personnel should promptly repair the equipment, and warehouse personnel should prepare spare parts for the equipment to ensure timely replacement and normal operation.

(3) The process water system is an important guarantee for the operation of equipment. The slurry circulation pump requires cooling water for sealing and cooling, and the reducer also needs cooling water for cooling. Therefore, it is necessary to ensure the normal operation of the process water system. The inlet filter screen of the process water pump can filter impurities, so that the pipeline can be unobstructed, and the service life of the mechanical seal dynamic and static rings can also be extended. The outlet of the process water pump maintains normal pressure in order to have sufficient water to cool down the equipment, and the sealing water in the machine seal can also better block the leakage of the slurry.