A system and method for energy-saving operation scheduling of a single-type water pump

A technology of water pump and variable frequency water pump, used in pump control, liquid variable capacity machinery, machine/engine, etc.

Active Publication Date: 2016-12-14
SHANGHAI MUNICIPAL ENG DESIGN INST GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the past, in engineering practice, operators often selected a certain pump operation combination within a certain range of working conditions based on experience, and the results were not necessarily the most optimal (energy-saving) pump operation combination scheme without theoretical analysis.

Method used

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  • A system and method for energy-saving operation scheduling of a single-type water pump
  • A system and method for energy-saving operation scheduling of a single-type water pump
  • A system and method for energy-saving operation scheduling of a single-type water pump

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Embodiment Construction

[0014] Such as figure 1 As shown, a system for energy-saving operation scheduling of a single-type water pump includes a water inlet and an outlet, and several power frequency water pumps 1 and variable frequency water pumps 2 connected in parallel between the water inlet and water outlet. The frequency water pump 1 and the frequency conversion water pump 2 are respectively provided with a water pump control box 3, a water inlet pressure gauge (liquid level gauge) 4 is provided at the water inlet end, and a water outlet pressure gauge (liquid level gauge) 5 is provided at the water outlet end. There is also a flow meter 6 at the end, and the dispatching system also includes a control unit 7, the data acquisition end of the control unit is connected with the water inlet pressure gauge (liquid level gauge), the water outlet pressure gauge (liquid level gauge) and the flowmeter , the water pump control end of the control unit is connected to each water pump control box, and the o...

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PUM

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Abstract

The invention discloses a method for single-model water pump energy-saving operation dispatching. The method comprises the following steps that A, water pump parameter data is read; B, real-time operation work condition data is read; c, the water pump flow rate-lift relational expression and the flow rate-power relational expression are calculated; D, the water pump flow rate under the operation work condition is calculated, and the minimum operation water pump number is determined; E, scheme combination screening is carried out; and F, the operation energy consumption of the feasible scheme is calculated, and the sequencing is carried out. Under the given work conditions, all water pump operation combined schemes meeting the operation work condition are enumerated according to the parameters such as flow rate, lift and energy consumption of the water pump and the boundary conditions such as the maximum work water pump number, the variable-frequency water pump number and the minimum and maximum flow rate of the water pump operation range, in addition, the schemes adapting to the water pump operation range are screened, then, the feasible scheme is subjected to energy consumption analysis, and the water pump combined operation scheme with the minimum energy consumption is obtained, so the economic operation problem of the water pump is solved, and the guide effect is realized on the operation dispatching of the water pump.

Description

technical field [0001] The invention relates to the operation scheduling of water pumps. In particular, it relates to a system and a scheduling method for energy-saving operation scheduling of a single-type water pump. Background technique [0002] In the municipal, water conservancy, petrochemical and other industries, a large number of water pumps are used to lift or pressurize fluids. Among them, several water pumps of the same type are used in parallel operation, and some water pumps use frequency conversion speed control devices. It is the most frequently encountered situation. [0003] The power consumption of water pumps often accounts for more than 70% of the total power consumption of the project in the municipal and water conservancy industries, and it often accounts for a considerable part of the application in other industries. Under different operating conditions, there may often be multiple combinations of pumps that meet the requirements of the operating cond...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B49/06
Inventor 李静毅陆晓如王如华顾玉亮张硕黄澄王健乐勤
Owner SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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