Pump efficiency monitoring and detecting method

Abstract

The invention provides a pump efficiency monitoring and detection method. A full-close current value and a full-close lift value are measured at first; if the full-close current value is not higher than 8% compared with that of a new machine and the full-close lift value is not reduced by 3% compared with that of the new machine, a vibration measurement program is carried out; if oppositely, a overhaul program with efficiency overhaul and mechanical overhaul is carried out; if an amplitude displacement is less than the prearranged value, the efficiency of the pump is proved to be good; if oppositely, the mechanical overhaul is carried out. Subsequently, the full-close current value and the lift value of the pump are measured after the overhaul program is carried out; if the full-close current valve is not higher than 5% compared with that of a new machine and the full-close lift value is not reduced by 2% compared with that of the new machine, most of the efficiency of the pump after the overhaul is proved to be recovered. The pump efficiency monitoring and detection method which is provided by the invention can monitor and detect the efficiency by measuring the full-close current value and the full-close lift value of the pump, has simple and convenient operation and practically and effectively improves the efficiency loss of the pump.

Description

technical field [0001] The invention relates to a pump monitoring and detection method, in particular to a pump efficiency monitoring and detection method that can be applied on site. Background technique [0002] The pump (Pump) has become an indispensable and widely used appliance in industry, agriculture, household, medical treatment, flood control, etc., and it is mainly used as a power source for driving liquid flow. However, the efficiency of pump operation has not been paid attention to. Most of the maintenance of mechanical parts is carried out when the pump has failed or cannot be operated. For factories with a relatively sound maintenance system, there are operating procedures for regular maintenance. Unfortunately, for a pump that has been in operation for 3 to 20 years, it is very common that its efficiency loss (compared with its new machine, referred to as efficiency loss) has reached 5% to 20%. Once the efficiency loss increases, it will inevitably increase t...

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Problems solved by technology

However, the larger the gap of the wear ring 11, the higher the efficiency loss. Just because the traditional detection method does not further control the efficiency of the pump 1, therefore, often after mechanical overhaul, its efficiency is still the same as before the overhaul. same, the energy consumption is still high

[0006] The current pump detection method is only when the mechanical parts are out of operation or for regular maintenance. At this time, it is no longer possible to prevent the energy consumption, and even if it is impossible to confirm whether the efficiency of the pump 1 is restored after maintenance. The dismantling of pump 1 resulted in the shutdown of the entire line and the delay of the schedule, completely ignoring the importance of energy consumption in inspection and maintenance, resulting in a waste of energy and an increase in cost. Therefore, how to effectively use energy and implement pump 1 Efficient energy control and tracking to save ineffective energy waste, and it is a simple and convenient monitoring and detection method in implementation, which has become the goal pursued by various manufacturers.

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