A kind of air conditioning capacity estimation method and air conditioner

Abstract

The present invention provides a method for estimating air conditioning capacity. Determine the differential pressure coefficient; obtain the oil return ratio of the compressor, and correct the oil return ratio according to the differential pressure coefficient, and then calculate the oil separation efficiency of the system; Refrigerant flow; obtain the enthalpy value of the air-side refrigerant and the enthalpy value of the liquid-side refrigerant of the indoor unit, and combine the refrigerant flow and the power of the indoor unit to determine the cooling / heating capacity of the air-conditioning system. The present invention also provides an air conditioner using the above method. The air-conditioning capacity estimation method provided by the invention has a simple calculation method and high calculation accuracy, so that the air-conditioner can accurately reflect its operating capacity and energy efficiency under different working conditions outside the factory, which is helpful to enhance the user experience and satisfaction. Improve the market competitiveness of products.

Description

technical field [0001] The invention belongs to the technical field of air conditioners, and in particular relates to an air conditioner capability estimation method and an air conditioner. Background technique [0002] At present, most of the determination of air conditioning capacity and energy efficiency is obtained by testing the air conditioner in the enthalpy difference laboratory in the factory. However, after the installation of the air conditioner is completed, the actual operation of the air conditioner under different working conditions cannot be obtained outside the factory. capacity and energy efficiency. In addition, the judgment of the cooling and heating capacity of the air conditioner is usually obtained by calculating the refrigerant flow in the air conditioning system, but the calculation process of the refrigerant flow in the related art does not fully consider the actual operation of the air conditioning system under different working conditions. The ac...

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Problems solved by technology

[0002] At present, the determination of air conditioning capacity and energy efficiency is mostly obtained by testing the air conditioner in the enthalpy difference laboratory in the factory. However, after the installation of the air conditioner is completed, the actual operation of the air conditioner under different working conditions cannot be obtained outside the factory. Capacity and Energy Efficiency

In addition, the judgment of the cooling and heating capacity of the air conditioner is usually obtained by calculating the refrigerant flow rate in the air conditioning system, but the calculation process of the refrigerant flow rate in related technologies does not fully take into account the actual operation of the air conditioning system under different working conditions. The accuracy of the determined air-conditioning capacity judgment results is not high

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