High-quality submersible slurry pumps can better ensure the normal operation of submersible slurry pumps. Therefore, when purchasing a submersible slurry pump, it is very important to buy a good one. How to judge its quality?

1. When purchasing, first pay attention to the scale of the manufacturing enterprise, which can be done through qualification documents or on-site inspections.

2. In China, the manufacture of submersible slurry pumps usually uses two types of materials. One is a metal lining, usually called wear-resistant high-chromium alloy. The other is a rubber lining, which is a naturally wear-resistant and corrosion-resistant rubber. The lining material of the slurry pump accounts for a large part of its cost. Therefore, whether the material of the submersible slurry pump is qualified and whether it can meet the corrosion requirements of the medium directly determines the service life of the pump.

3. Submersible slurry pumps have many series and models. According to the parameters you provide, the selection quotes given by different businesses may be different, so the selection is particularly important. Only by choosing manufacturers with strong production capacity and rich practical selection experience can we truly choose submersible slurry pumps that meet the user's requirements and are more economical and affordable.

Three methods for troubleshooting slurry pump pipeline failures are diagnosis, tapping, and electronic detector inspection:

1. Slurry pump pipeline troubleshooting and diagnosis

By comparing the sound produced during the normal operation of the slurry pump and the abnormal sound produced after the failure, the slurry pump will make a rhythmic sound during normal operation. When suspecting a problem with the machine, carefully observe the rhythm to determine whether the machine has any impact, looseness, or other hidden dangers, because when the equipment has a problem, it often makes strange and messy noises, and experienced users can judge where the problem is based on these sounds.

2. Slurry pump pipeline troubleshooting - tapping method

Refers to using a hand hammer or other mechanical tools to tap machine parts. Whether the sound is normal. If there is a crack noise, it indicates that the part may have cracks or other faults.

3. Slurry pump pipeline troubleshooting - electronic detector inspection method

The electronic diagnostic instrument is a vibration acceleration sensor. Its working principle is to convert the vibration state into an electrical signal and amplify it. When the equipment is running, the operator uses headphones to receive the vibration sound. Through this method, the signals under different speeds and operating conditions are compared and analyzed to determine whether there is a fault in the equipment.

For submersible slurry pumps, the total outlet pressure is much greater than the inlet pressure, so it is particularly important to eliminate the axial force using balancing force. How to eliminate axial force?

1. Hydraulic slurry pumps generally use a balance disc and impeller symmetrical installation. Single-stage pumps usually open the balance holes on the impeller. Of course, balance blades are installed on the impeller disc to balance the axial force.

2. Although we need to eliminate the axial force, if the axial force is completely eliminated, it will also cause the rotor to rotate unstably. Therefore, in the design, 30% of the amount will be designed to offset the bearing. This is why the bearings on the non-drive end of the pump are usually angular contact bearings, because they can withstand larger axial forces.

Only by understanding what the axial force of a submersible slurry pump is from the beginning can it be better eliminated.