A method of energy saving in variable flow water system based on the combination of large and small pumps

A variable flow and water flow technology, applied in pump testing, liquid variable capacity machinery, machine/engine, etc., can solve the problem of unreasonable energy consumption between the pump and the system pipe network, and achieve significant energy saving effects, stable operation, The effect of saving power consumption

Active Publication Date: 2016-02-03
湖南泰通能源管理股份有限公司
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Problems solved by technology

[0006] The present invention provides an energy-saving method for a variable flow water system based on the combination of large and small pumps. The purpose is to use this method to realize the most energy-saving operation of the water delivery and circulation system, and to solve the energy consumption caused by the unreasonable matching between the water pump and the system pipe network. question

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  • A method of energy saving in variable flow water system based on the combination of large and small pumps
  • A method of energy saving in variable flow water system based on the combination of large and small pumps
  • A method of energy saving in variable flow water system based on the combination of large and small pumps

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Embodiment Construction

[0043] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0044] Such as figure 1 As shown, it is a structural diagram of the circulating water system of a coking plant in Southwest China. figure 2 and image 3 They are schematic diagrams of the pipelines of the circulating water system of a coking plant in Southwest China in summer working conditions and winter working conditions respectively. Energy-saving rectification of the circulating water system is carried out, and an energy-saving method for the variable flow water system based on the combination of large and small pumps of the present invention is adopted, including the following steps :

[0045] Step 1: Measure the working conditions of the existing water system in winter and summer;

[0046] (1) Nameplate parameters of the pump and motor;

[0047] The pump nameplate parameters include rated flow, rated head, rated speed and supporting motor po...

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Abstract

The invention provides a variable flow water system energy-saving method based on combination of a large pump and a small pump. By means of the variable flow water system energy-saving method, the working conditions of an existing water system are analyzed and rectified, an appropriate new water pump is selected for the existing water system again, the conditions that the existing water system is low in efficiency and high in energy consumption are improved or eliminated, so that the working efficiency of the water system is improved, a motor of the water pump operates stably, the phenomena of heating, vibration, noise, gas etching and the like are effectively restrained, and the problem that under different working situations, the water pump is unreasonably matched with a system pipe net is solved. Experimental data are compared, the result shows that power consumption of the water system can be greatly saved through the variable flow water system energy-saving method, and the energy-saving effect is obvious. The selected new water pump not only can meet the demands of the existing water pump, but also keeps the subsequent extending space. The designing and manufacturing cost of the water system is reduced.

Description

technical field [0001] The invention relates to an energy-saving method for a variable flow water system based on the combination of large and small pumps. Background technique [0002] Water delivery or circulation systems are widely used in cooling, circulation, water supply and other fields, and their power consumption is huge, accounting for 20% of the world's electricity consumption. In the water delivery or circulation system, there are a large number of unreasonable matching problems between the water pump and the system pipe network, resulting in a huge waste of energy. [0003] Taking the cooling circulating water system of the soft ring pumping station of a stainless steel factory in a certain area in Northwest China as an example, the cooling circulating water system adopts variable flow control. Heater, manually adjust the butterfly valve at the inlet of the plate heat exchanger to maintain the temperature of the secondary network not exceeding 35°C, exchange he...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B51/00
Inventor 胡林毛叶平黄晶
Owner 湖南泰通能源管理股份有限公司
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