Efficient method and pump valve integrated energy-saving device for water pump

An energy-saving device and water pump technology, applied in pump control, liquid variable capacity machinery, machine/engine, etc., can solve problems such as unsatisfactory energy-saving effect, and achieve the effect of improving the energy efficiency of the main engine, optimizing the operating energy efficiency, and obvious energy-saving benefits.

Inactive Publication Date: 2012-03-07
HANGZHOU ZETA TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention mainly aims at the disadvantages of the simple frequency conversion speed regulating device and the unsatisfactory energy-saving effect of the single-loop control method in the prior art, and invents a method for optimizing

Method used

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  • Efficient method and pump valve integrated energy-saving device for water pump
  • Efficient method and pump valve integrated energy-saving device for water pump
  • Efficient method and pump valve integrated energy-saving device for water pump

Examples

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Example Embodiment

[0038] Embodiment 1: The figure shows a schematic diagram of the technical process of pump-valve integrated joint regulation. The pressure sensors at the inlet and outlet of the water pump are sequentially connected to the DCS / PLC through the cable and through the cable terminal 6.

[0039] The operation optimization platform software 7 embeds or downloads a "single pump energy efficiency optimization program", and transfers the results of the program to the DCS / PLC device to do the following optimization work:

[0040] (A) Through the joint adjustment of frequency conversion and valve body adjustment components, the energy efficiency of single pump operation is optimized;

[0041] (B) The opening adjustment of the valve body adjustment assembly is combined with the cutting of the outer diameter of the impeller of the raw water pump;

[0042] (C) The opening adjustment of the valve body adjustment component is combined to change the hydraulic model of the original water pump (replace ...

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Abstract

The invention relates to an efficient method and a pump valve integrated energy-saving device for a water pump. The invention discloses an optimization method for the operating efficiency of a single water pump which is applied to a circulating water system as well as the pump valve integrated energy-saving device for implementing the optimization method, so as to achieve a more optimized energy-saving effect. The method adopts the main technical scheme that: (I) pressure sensors are respectively mounted at the inlet of the water pump and the outlet of the water pump, the pressure of the inlet of the water pump and the pressure of the outlet of the water pump are respectively measured, and a pressure water head between the inlet of the water pump and the outlet of the water pump is calculated; (II) a position water head between the inlet of the water pump and the outlet of the water pump is measured by using a measuring tape or a ruler; (III) a pump lift of the water pump is calculated; (IV) the flow rate, the shaft power and the internal efficiency of the water pump at an operating point are calculated by using the performance chart and the NPSHc (Net Positive Suction Head chart) of a given water pump; (V) the voltage, the current and the input power of a motor of the water pump are measured by using a multifunction electric quantity parameter meter; and (VI) the optimization calculation for the operating efficiency of the single water pump is realized by using platform software.

Description

technical field [0001] The invention relates to an energy-saving method of a water pump, in particular to a method for optimizing the energy efficiency of a single-machine operation of a water pump applied to a circulating water system. The invention also relates to a pump-valve integrated energy-saving device for realizing the energy-saving optimization method. Background technique [0002] In the transmission and distribution pipeline network of the central air-conditioning water system, regional hot water supply system, and industrial circulating water system, there are generally certain characteristics such as continuous operation of the water pump unit, high energy consumption of the system operation, low degree of automation, and large energy-saving space. The high efficiency of the single machine and the integrated energy-saving device of the pump and valve are the energy-saving methods to realize the optimal energy efficiency of the single-machine operation of the pu...

Claims

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Application Information

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IPC IPC(8): F04B49/22
Inventor 沈新荣杨春节王小华麻剑锋郁辉球章威军徐海敏赵凯
Owner HANGZHOU ZETA TECH
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