What are the common faults and solutions of acid resistant pumps in Dalian?

Dalian acid resistant pump, as an important industrial equipment, plays a crucial role in industries such as chemical, pharmaceutical, and metallurgical. With the continuous advancement of materials science, manufacturing technology, and intelligent technology, the performance and reliability of acid resistant pumps will continue to improve, providing safer, more efficient, and environmentally friendly solutions for industrial production. In practical applications, correct selection, reasonable use, and regular maintenance are key to ensuring the long-term stable operation of acid resistant pumps.

When selecting and using acid resistant pumps, multiple factors need to be considered to ensure the performance and reliability of the pump. The main selection and usage points include: selecting the appropriate pump type and material based on the properties of the conveying medium, such as concentration, temperature, viscosity, etc. According to the process requirements, select the appropriate flow rate and head to ensure that the pump can meet production needs. Install and debug according to the installation requirements of the pump to ensure smooth and efficient operation of the pump.

What are the common faults and solutions of acid resistant pumps in Dalian?

Pump does not start

Reason for malfunction: Power failure, such as power outage, blown fuse, burnt motor winding, etc; The pump shaft may be stuck due to foreign objects entering the pump body, damaged bearings, or friction between the impeller and the pump casing; The tripping of the motor overload protection device may be caused by excessive load on the pump, improper motor selection, or low power supply voltage.

Solution: Check if the power supply is normal. If there is a power outage or a blown fuse, restore the power supply or replace the fuse in a timely manner; Check if the motor winding is burnt out. If it is burnt out, replace the motor in a timely manner; Clean up foreign objects inside the pump body, check the wear of bearings and impellers, and replace them promptly if damaged; Check the load condition of the pump. If there is overload, reduce the load or replace the appropriate motor; Check if the power supply voltage is normal. If the voltage is too low, adjust the voltage.

Insufficient traffic

Reason for malfunction: The inlet pipeline is blocked, which may be caused by debris or clogged filters inside the pipeline; Impeller wear may be caused by long-term use or the presence of particles in the medium; The low speed of the pump may be caused by motor failure, loose belt, and other reasons; Seal leakage may be caused by mechanical seal damage, aging gasket, and other reasons.

Solution: Clean the debris inside the inlet pipeline and clean the filter; Check the wear of the impeller, and if there is any wear, replace the impeller in a timely manner; Check if the motor speed is normal. If there are any abnormalities, check the condition of the motor and belt, and repair or replace them in a timely manner; Check the condition of the seals and replace them promptly if damaged.

Insufficient head

Reason for malfunction: Damage or blockage of the impeller, which may be caused by corrosion, wear, or blockage by foreign objects; The installation height of the pump is too high, which may be due to improper installation position of the pump, resulting in a high suction height of the pump and affecting its head; Excessive pipeline resistance may be caused by reasons such as excessively long pipelines, small pipe diameters, or debris inside the pipelines.

Solution: Check the condition of the impeller. If there is any damage or blockage, it should be repaired or cleaned in a timely manner; Reduce the installation height of the pump to ensure that the suction height of the pump is within the allowable range; Check the condition of the pipeline. If there are pipes that are too long or too small, they should be adjusted, and debris inside the pipeline should be cleaned to reduce pipeline resistance.

Pump vibration is high

Reason for malfunction: The pump shaft and motor shaft are not concentric, which may be due to improper adjustment of the position of the pump and motor during installation, or due to unstable foundations; Bearing damage may be caused by long-term use, poor lubrication, bearing quality, and other reasons; Unbalanced impeller may be caused by uneven wear of the impeller or foreign objects on the impeller; Pipeline resonance may be caused by unstable fixation of the pipeline, or the natural frequency of the pipeline being close to the vibration frequency of the pump.

Solution: Adjust the concentricity between the pump shaft and the motor shaft to ensure that the coaxiality of the two shafts is within the allowable range; Check the condition of the bearings, and replace them promptly if damaged; Conduct a dynamic balance test on the impeller. If there is any imbalance, adjust or replace the impeller; Check the fixing condition of the pipeline, increase the support of the pipeline, change the natural frequency of the pipeline, and avoid pipeline resonance.

Loud noise

Reason for malfunction: There is air inside the pump, which may be caused by air leakage in the inlet pipeline or insufficient liquid filling in the pump; The high viscosity of the medium may be due to the viscosity of the medium exceeding the allowable range of the pump, resulting in an increase in the operating resistance of the pump and the generation of noise; The friction between the impeller and the pump casing may be caused by improper installation or wear of the impeller.

Solution: Check the sealing of the inlet pipeline, eliminate the air inside the pipeline, and ensure that the pump is filled with liquid; If the viscosity of the medium is high, it may be considered to replace the appropriate pump or perform heating, dilution, and other treatments on the medium; Check the installation of the impeller, adjust the gap between the impeller and the pump casing. If there is wear, replace the impeller in a timely manner.

seal leakage

Reason for malfunction: Mechanical seal damage, which may be caused by wear of the sealing surface, failure of the sealing spring, aging of the sealing components, etc; Damage to the sealing gasket may be caused by aging or improper installation of the gasket; The wear of the shaft seal may be caused by the long-term erosion and wear of the medium on the shaft seal.

Solution: Check the condition of the mechanical seal and replace it promptly if it is damaged; Replace damaged gaskets to ensure correct installation; To repair or replace the shaft seal, methods such as spraying and welding can be used to repair the wear of the shaft seal.

Acid resistant pump is a type of pump equipment specifically designed for transporting acidic media. Its main feature is the ability to resist corrosion from acidic media, ensuring long-term stable operation of the equipment in harsh chemical environments. Acid resistant pumps are widely used in industries such as chemical, pharmaceutical, metallurgical, electroplating, and environmental protection to transport strong acidic liquids such as sulfuric acid, hydrochloric acid, nitric acid, and phosphoric acid.

The sealing structure of acid resistant pumps must have good sealing performance to prevent leakage of acidic media. Common sealing methods include mechanical seals, packing seals, and magnetic seals. Select appropriate materials based on the properties of the conveying medium to ensure that the pump body and internal components have good corrosion resistance. The structural design of the pump should minimize dead corners and stagnant areas as much as possible to avoid the accumulation and corrosion of the medium inside the pump.