Electric water feeding pump set efficiency test method

A technology for electric feed water pumps and efficiency testing, applied in pump testing, machines/engines, liquid displacement machines, etc.

Active Publication Date: 2018-05-11
ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no specific report on the test system and method for the overall efficiency of the feedwater pump set considering the factors such as the front pump of the feedwater pump set, the middle tap of the feedwater pump, the feedwater pump, and the input power of the electric motor unit driving the feedwater pump set

Method used

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  • Electric water feeding pump set efficiency test method
  • Electric water feeding pump set efficiency test method
  • Electric water feeding pump set efficiency test method

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Embodiment Construction

[0051] The technical solutions in the present invention are clearly and completely described below in combination with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0052] A method for testing the efficiency of an electric feedwater pump set provided by the present invention includes the following steps:

[0053] (1) When the electric feed water pump unit and its connected system are out of operation, the pre-pump inlet pressure gauge 3, the pre-pump inlet temperature gauge 4, the pre-pump outlet pressure gauge 6, and the pre-pump outlet temperature gauge Meter 7, feedwater pump inlet flow measuring device, feedwater pump outlet pressure...

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Abstract

The invention discloses an electric water feeding pump set efficiency test method, and relates to the technical field of thermal generator set auxiliary equipment. The electric water feeding pump setefficiency test method comprises the steps that inlet pressure and temperature and outlet pressure and temperature of a front-mounted pump, the inlet flow, and the outlet pressure and temperature of awater feeding pump, the pressure and flow of a center tap and the power and the power factor of an electric motor are test through a pressure gauge meter, a thermometer, a throttling hole plate, a differential pressure gauge meter, and a power test device; according to the conservation of energy, the data are converted into effective power of an electric water feeding pump set, and therefore theefficiency of the measured electric water feeding pump set is calculated; through the test method, related running parameters of the electric water feeding pump set are tested, and the precise electric water feeding pump set efficiency is obtained through calculation.

Description

technical field [0001] The invention belongs to the technical field of auxiliary equipment of a thermal power generating set, and in particular relates to an efficiency testing method of an electric feed water pump set. Background technique [0002] Thermal power or nuclear power generation enterprises have high-power rotary equipment electric feed water pumps (including front pumps and feed water pumps) that transport liquids, which consume a large amount of electricity and account for a high proportion of plant power consumption, and their efficiency directly affects the benefits of the enterprise. Improving pump efficiency to save energy and increase efficiency has obvious practical significance. [0003] However, there is no relevant literature report on the test system and method for obtaining the efficiency of the electric feed water pump set. Li Chunxi, An Lianlian et al. proposed the thermodynamic method to measure pump efficiency research progress, introduced the m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B51/00
CPCF04B51/00
Inventor 文立斌
Owner ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
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