Multi-parameter-based large and medium-scaled low lift vertical-type water pump set state evaluating method

Abstract

The invention discloses a multi-parameter-based large and medium-scaled low lift vertical-type water pump set state evaluating method, and belongs to the technical field of the water pump set state evaluation. The method comprises the following steps: through decomposing a large and medium-scaled low lift vertical-type water pump set, decomposing as a main motor with 9 parts and a main water pumpwith 6 parts, generating a state quantity of each part through comprehensive patrol data, testing data, monitoring data and online monitoring data, grading each state quantity, and respectively evaluating operating states of the main motor and the main water pump through using a comprehensive deducting score method. The method is clear in principle, and capable of clearly reflecting the operatingstate of the water pump set, and ensuring safe operation. Compared with traditional point inspection test evaluation, the method provided by the invention is more comprehensive in evaluation parameter, and capable of providing effective basis for maintenance of the water pump set, reducing a lot of labor cost, and overcoming defects that a monitoring range is small, and an experienced operation manager who regularly performs scientific and rational comprehensive evaluation and maintenance on a pump station is lacking.

Description

technical field [0001] The invention belongs to the technical field of water pump unit state evaluation, and relates to a water pump unit state evaluation method, in particular to a multi-parameter-based large and medium-sized low-lift vertical water pump unit state evaluation method. Background technique [0002] With the needs of social development and economic construction, water pump stations play an increasingly important role in drainage, irrigation, urban water supply, ecological environment restoration, and cross-basin water transfer. The water pump unit is the key main equipment of the water pump station, and its operating status directly affects the safe operation of the pump station. A large and medium-sized low-head vertical water pump unit consists of a vertically installed motor and an axial-flow or mixed-flow water pump. Each device is composed of several components, and different components are related to each other and tightly coupled. Due to the complex st...

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Problems solved by technology

Due to the complex structure of the pump unit and the harsh working environment, different forms of failures will occur

During the operation of the pumping station, if any component works abnormally, it may be amplified by the system, resulting in failure or failure of the entire equipment system

[0003] At present, the state evaluation methods of electric power equipment are widely used, but there is no corresponding evaluation standard for the state evaluation of water pump units, and there is no corresponding basis for the decomposition of evaluation equipment components. At present, large and medium-sized pumping stations generally rely on computer monitoring systems to realize pump However, there are deficiencies such as small monitoring range, high labor costs, and lack of experienced operation and management personnel to conduct scientific and reasonable comprehensive evaluation and maintenance of pumping stations on a regular basis.

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