A method and system for diagnosing energy efficiency of a refrigeration host in a hospital air-conditioning machine room
A technology for refrigerating hosts and energy efficiency diagnosis, which is applied in heating and ventilation control systems, heating and ventilation safety systems, heating methods, etc. It can solve the problems of not being able to reflect the energy efficiency of refrigerating hosts in time, and achieve overall energy saving and simple operation Effective effect of using and operating
Active Publication Date: 2020-04-21
SHENZHEN DAS INTELLITECH CO LTD
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[0003] The purpose of the present invention is to provide a method and system for diagnosing the energy efficiency of the refrigeration main engine in the hospital air-conditioning room, which solves the problem that the existing technology cannot reflect the seasonal operation energy efficiency of the refrigeration main engine in time
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[0033] Below in conjunction with the accompanying drawings and embodiments, the energy efficiency diagnosis method and system of the refrigeration host of the hospital air-conditioning room of the present invention will be further described:
[0034]In the following description, suffixes such as 'module', 'component' or 'unit' used to represent elements are used only to facilitate the description of the present invention and have no specific meaning per se. Thus, "module", "component" or "unit" may be used interchangeably.
[0035] like figure 1 As shown, this embodiment provides a fast and simplified method for diagnosing the energy efficiency of a refrigeration host in a hospital air-conditioning room, the method comprising:
[0036] S1. Collect the operating parameters of the cooling host at each adjacent moment of the set time interval; that is, collect and record the operating parameters of the cooling host within a day. For example, if the time interval is 1 hour, there...
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The invention relates to a refrigeration main machine energy efficiency diagnosis method and a system of a hospital air conditioning control room. The method comprises the following steps: operation parameters of a refrigeration main machine are acquired at each adjacent time spaced by the set time; the actual refrigeration capacity of the refrigeration main machine is calculated; part load rate of the refrigeration main machine is calculated; actual performance coefficients and anticipant performance coefficients of the refrigeration main machine are calculated; and the real-measured energy efficiency level and the anticipant energy efficiency level of the refrigeration main machine are compared. The refrigeration main machine energy efficiency diagnosis method and system compare the real-measured operation energy efficiency of sampling points in the operation period of the main machine within one day with the anticipant energy efficiency for training learning and iteration regression by applying COP history data to judge if the operation efficiency of the refrigeration main machine at the day is high or low and if further operation maintenance or control optimization needs to be performed, and can assist and guide the control room and equipment managers to estimate and diagnose the energy consumption level and the energy efficiency level of the main machine and to improve control policies so as to realize overall energy conservation of a central air conditioning system.
Description
technical field [0001] The invention relates to the technical field of air-conditioning refrigeration systems, and more particularly, to a method and system for diagnosing the energy efficiency of a refrigeration host in a hospital air-conditioning room. Background technique [0002] In my country, the total building energy consumption in 2014 exceeded 1.25 billion tons of standard coal, accounting for 30% of the total social energy consumption. The energy consumption of central air-conditioning accounts for 65% of the total energy consumption of the building, of which the energy consumption of the air-conditioning room accounts for about 70% of the energy consumption of the air-conditioning system. Therefore, it is necessary to conduct real-time monitoring, evaluation and prediction of the energy efficiency level of the main equipment of the central air-conditioning system, especially the energy efficiency level of the refrigeration host, for the energy-saving operation of ...
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IPC IPC(8): F24F11/46F24F11/64F24F11/70F24F11/88
Inventor 薛雪
Owner SHENZHEN DAS INTELLITECH CO LTD