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Energy saving method for circulating water system

A circulating water system, high-efficiency and energy-saving technology, applied in non-variable-capacity pumps, pump devices, machines/engines, etc., can solve the problems of increasing internal leakage loss, improper operation and maintenance management, and increasing power loss, and improve operating efficiency. , Complete energy saving effect, eliminate the effect of high energy consumption

Inactive Publication Date: 2010-03-10
长沙翔鹅节能技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most circulating water systems have problems such as low efficiency and high energy consumption, which are mainly manifested in: 1) the design efficiency of water pumps and motors is low, and the manufacturing process is backward; 3) The design and construction of the pipeline system are unreasonable, resulting in high local resistance and increased head loss; 4) Leakage of the pipeline system and water flow bypass increase the flow loss; 5) Frequent work changes of water pumps 6) The system cannot be scientifically scheduled according to the actual needs of the process, which increases power loss; 7) Improper operation and maintenance management, failure to replace spare parts in time, increases internal leakage loss

Method used

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  • Energy saving method for circulating water system
  • Energy saving method for circulating water system
  • Energy saving method for circulating water system

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Embodiment Construction

[0046] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0047] see figure 2 , the circulating water system of a thermal power plant includes water pump unit 11, water inlet and outlet pipeline 12, water inlet pool 10, cooling tower 13, condensing steam 14, air cooler 15, oil cooler 16, etc., and its energy-saving transformation includes three steps:

[0048] First, use pressure gauges, flow meters, power meters, thermometers, tape measures and other tools to actually measure the on-site data of the circulating water system. The water inlet level is +2.2m, the outlet pressure of the pump is 0.19Mpa, the surface height is +0.5m, the temperature difference between the inlet and outlet water is 5°C, the water distribution height of the cooling tower 13 is +6.5m, and the system flow rate is 3.56m 3 / s. The current of the two water pumps is 36A and 37.5A respectively, the voltage is 10.2KV, the motor p...

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Abstract

The invention discloses an energy saving method for a circulating water system. The method comprises the following steps: firstly, detecting duty parameters of the current operation of the system andparameters of related devices; then, in accordance with the principle of economic operation of the circulating water system, creating a standard for the balance test and the calculation of the systemenergy by starting with a circulating water pump group, a pipe network, a heat-exchange device, a refrigeration device, a cooling tower and the like, analyzing the use efficiency of the system energy,evaluating the current use efficiency index of the system energy, and finding out the cause for the high energy consumption of the system; finally, by combining production process requirements, accurately finding out the optimum operating point where the devices are matched with the liquid transportation, and giving an optimum solution for the process energy of the system so as to achieve the purposes of high efficiency and energy saving. By detecting and analyzing the circulating water system, the invention provides a comprehensive, systemic and thorough energy saving method for the circulating water system.

Description

technical field [0001] The invention relates to an energy-saving method, in particular to an energy-saving method for a circulating water system. Background technique [0002] Water pumps are widely used in various fields of the national economy such as electric power, petroleum, chemical industry, metallurgy, environmental protection and municipal administration, and are one of the most important energy-consuming equipment, accounting for about 20% of the total power generation. Circulating water system such as figure 1 As shown, it is mainly composed of pump 1, transmission device 2, motor 3, power supply device 4, speed control device 5, suction pipeline 6, discharge pipeline 7, heat exchange equipment 8 and cooling tower 9, etc. Most circulating water systems have problems such as low efficiency and high energy consumption, which are mainly manifested in: 1) the design efficiency of water pumps and motors is low, and the manufacturing process is backward; 3) The design...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D13/06
Inventor 吴波
Owner 长沙翔鹅节能技术有限公司
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