Discuss the effects and potential risks of pressure at the inlet of a centrifugal pump on the pump itself
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The inlet pressure of the centrifugal pump is 45 kilograms. What impact does operating under such conditions have on the pump? Let’s discuss it
Are you using single envelopes or double envelopes?
For single-suction pumps, axial force needs to be taken into account, as well as the choice of seal
As long as it is within the operating conditions of the pump, it is normal; if it is outside those conditions, it is abnormal and various problems will arise. If there is overpressure before the pump, it will cause overpressure after the pump as well as overpressure throughout the system. If the pressure before the pump is below the specified range, it will result in low pressure at the pump outlet; in severe cases, cavitation may occur, preventing the pump from functioning properly.
This post was last edited by 3983596_FPPZ on 2019-4-10 09:06. If it exceeds the range of the original ordering data, this pump cannot be used any longer. Additionally, single-stage single-suction pumps present the following issues: 1. Whether the strength of the pressure-bearing components such as the pump body and cover is sufficient ； 2. Is the bolt strength between the pressure-bearing shells satisfactory? ； 3. Is the nominal pressure of the pump inlet and outlet flanges acceptable? ； 4. The static sealing gaskets in various locations (the gaskets between the pump body and the pump cover, flange gaskets, and static sealing washers) are prone to leakage. 5. The residual axial force increases, resulting in a higher axial load on the bearings. 6. It is necessary to determine whether the mechanical seal has sufficient pressure resistance; a balanced design is required
The pump keeps experiencing problems during operation, which makes it unusable. I want to know the impact of high inlet pressure on the pump. The first-stage pump has a head of 450 meters and a flow rate of 100 cubic meters; its output goes directly to the inlet of the second-stage pump. The second-stage pump has a head of 170 meters and a flow rate of 65 cubic meters. Does it affect the operation of the two-stage pump?
What are single-stage and two-stage pumps like? Please describe it
The first stage is a multi-stage pump, while the second stage is a single-stage centrifugal pump
If the head generated by a single pump stage is not sufficient, does it require a second pump stage to boost the head? What problems are occurring with the two-stage pump? Is there any other container between the two-stage pump and the single-stage pump, or are they connected directly? Was the two-stage pump added later when the head produced by the single-stage pump did not reach the desired value, or was this part of the original design?