Air conditioner throttling set able to carry out dynamic control of cool medlium filling amount

Abstract

The throttling device includes controller, reservoir of secondary refrigerant, electromagnetic valves cascaded in two ends of reservoir of secondary refrigerant. Controller is connected to electromagnetic valves. In operation, electromagnetic valves cascaded to reservoir of secondary refrigerant are connected to capillary branch in parallel. When working condition is changed, based on changed load, electromagnetic valves control reservoir of secondary refrigerant to adjust quantity of circulated working fluid automatically in order to guarantee optimal quantity of circulated working fluid and coefficient of performance at any working conditions to reach purpose of saving energy.

Description

technical field [0001] The invention relates to a throttling device of an air conditioner, in particular to an air conditioner throttling device which is applied to outdoor unit components of various air conditioners and can realize dynamic control of refrigerant charging amount. technical background [0002] The amount of refrigerant charge has a great influence on the performance of the air conditioner. There is an optimal charge amount corresponding to different working conditions of the air conditioner. When the refrigerant charge amount of the air conditioner is at the optimal charge amount, the air conditioner The energy efficiency ratio (or performance coefficient) of the device reaches the highest. Usually, the charging amount of the air conditioner is determined according to the design working condition, but the actual operating condition often deviates from the design working condition, so that even if the system is filled with the optimal charg...

AI Technical Summary

Problems solved by technology

[0005] When the present invention is in use, the electromagnetic valve group connected in series and the refrigerant liquid storage device are connected in parallel on the capillary branch road of the air conditioning system. Under the control of the number, according to the load change, while implementing the superheat control, the refrigerant liquid is stored in an appropriate amount, so as to ensure that the air conditioning system has the best working fluid circulation under any working conditions, and eliminates abnormalities in the condenser. Liquid accumulation, on the one hand, it can reduce the condensation pressure, on the other hand, it can make full use of the heat exchange area of ​​the heat exchanger, thereby improving the efficiency of the condenser, evaporator and compressor, and overcoming the constant charging system or excessive charging The adverse results of the system when the working conditions deteriorate, so that the performance of the system does not change with the working conditions, avoiding the problem of system performance degradation due to excessive charging, and ensuring that the air conditioning system has the best performance under any working conditions Working medium circulation volume and performance coefficient to achieve the purpose of high efficiency and energy saving

Images