Variable flow control method for freezing and cooling water pump based on heat exchange efficiency
A technology for cooling water pumps and heat exchange efficiency, applied in heating methods, heating and ventilation control systems, household heating, etc., can solve the problems of not comprehensively considering the impact of the comprehensive energy efficiency and energy consumption of cooling water/chilled water systems, and achieve comprehensive The effect of low energy consumption
Pending Publication Date: 2022-05-06
SHENZHEN JIALIDA ENERGY SAVING TECH CO LTD
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However, the above control method does not comprehensively consider the comprehensive energy efficiency of the cooling water / chilled water system, the impact of system load and environmental factors on the energy consumption of the cooling water / chilled water system
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[0029] The present invention will be further described below in conjunction with specific embodiment and accompanying drawing, set forth more details in the following description so as to fully understand the present invention, but the present invention can be implemented in many other ways different from this description obviously, Those skilled in the art can make similar promotions and deductions based on actual application situations without violating the connotation of the present invention, so the content of this specific embodiment should not limit the protection scope of the present invention.
[0030] The method of the present invention uses the performance parameter data of the chilled water system and the cooling water system to operate under different working conditions, applies the PID algorithm to process the data, and establishes relevant parameters and energy consumption models; through these models, the energy consumption in different environments and systems ca...
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The invention discloses a method for performing variable flow control on a freezing water pump and a cooling water pump based on heat exchange efficiency, which comprises the following steps of: processing performance parameter data of a freezing water system and a cooling water system under different working conditions by applying a PID (Proportion Integration Differentiation) algorithm, and establishing related parameter and energy consumption models; calculating energy consumption values for selecting different operating parameters under different environments and system loads through the models; then, system operation parameters enabling the energy consumption of the cooling water system to be the lowest under the specified environment and system load conditions and when the system requirements are met are found; and finally, the cooling water system is controlled according to the operation parameters, so that the energy consumption is lowest. The influence of environmental factors and system cooling load on the energy consumption of the cooling water system is comprehensively considered, the frequency of the cooling tower fan and the operation frequency of the cooling pump are controlled in a coordinated mode, and the comprehensive energy consumption of the cooling water system is the lowest on the premise that efficient operation of the water chilling unit is guaranteed.
Description
technical field [0001] The invention belongs to the technical field of energy and energy saving, and in particular relates to a method for variable flow control of freezing and cooling water pumps based on heat exchange efficiency. Background technique [0002] In modern intelligent buildings, the central air-conditioning system is an essential component, but the central air-conditioning is also a large energy-consuming modern building, and it is still in the trend of continuous improvement. In such a big environment, how to make the central air-conditioning system more energy-saving and efficient, and how to reasonably improve the overall energy efficiency ratio of the central air-conditioning system are more and more valued by current users. [0003] The cooling water / chilled water system is an important part of the central air-conditioning system, and its energy consumption accounts for about 15% to 20% of the energy consumption of the central air-conditioning system. The...
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Login to View More IPC IPC(8): F24F11/54F24F11/64F24F11/85F24F11/61F24F11/871F24F11/52F24F11/84F24F110/12F24F110/22F24F140/12F24F140/20
CPCF24F11/54F24F11/64F24F11/85F24F11/61F24F11/871F24F11/52F24F11/84F24F2110/12F24F2110/22F24F2140/12F24F2140/20Y02B30/70
Inventor 李海建徐景利黄海波
Owner SHENZHEN JIALIDA ENERGY SAVING TECH CO LTD