Introduction: Multi-stage centrifugal pumps are widely used, and their mouth rings are an important part of multi-stage centrifugal pumps. How to make multi-stage centrifugal pumps play a greater role requires understanding the relevant analysis and functions of multi-stage centrifugal pump mouth rings Introduce, the following editor will introduce the relevant analysis of the multi-stage centrifugal pump mouth ring.
Multi-stage centrifugal pump mouth ring (also known as sealing ring), generally a multi-stage centrifugal pump, the number of stages of the water pump is the same as the number of mouth rings, that is to say, a 5-stage water pump, then there are 5 mouth rings , A first mouth ring, 4 mouth rings.
The function of the multi-stage centrifugal pump mouth ring is to form a narrow and tortuous channel between the impeller and the pump casing to increase the flow resistance of the medium and reduce the leakage of the medium. The setting of the centrifugal pump mouth ring also plays a role in protecting the main parts of the pump from wear. After the mouth ring wears, you can repair or replace the new ring and restore the normal assembly gap, which is economical and easy to repair.
The integrity of the centrifugal pump mouth ring and its radial clearance with the impeller should be checked first when disassembling the pump. If the centrifugal pump mouth ring has defects such as grooves or has been broken or the gap exceeds the value specified in Table 5, a new mouth ring should be replaced or the original mouth ring should be repaired by welding.
The structure of the centrifugal pump mouth ring usually has a radial gap ring type, a double ring step type, a double ring labyrinth type and an axial gap type.
During the operation of the centrifugal pump, the corresponding circumferences of the centrifugal pump mouth ring and the impeller are worn at the same time, causing the gap to increase beyond the specified value, because the inner diameter of the new mouth ring should be prepared according to the outer diameter of the impeller inlet, between the impeller and the centrifugal pump mouth ring For radial clearance, refer to Table 5-3. In the repair process, this gap should be made smaller to improve the working efficiency of the pump and extend the service life.
The material of the mouth ring is generally gray cast iron HT200, cast steel and stainless steel. The material of the mouth ring can be determined according to the technical requirements.
Versatile and cuts like a dream - We created the perfect multi purpose cooking knife for YOU. Enjoy delicately slicing and chopping vegetables, carving meat, or even cutting through thin bone. A truly versatile experience.
Sllicing & Chopping Knife, Slicing Carving Knife, Kitchen Carving Knife
Liveon Industrial Co.,Ltd. , https://www.liveonkitchen.com