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Air conditioning system

An air-conditioning system and expansion valve technology, applied in air-conditioning systems, heating and ventilation control systems, heating and ventilation safety systems, etc., can solve problems such as reduced unit performance and inaccurate refrigerant charge, and achieve the effect of ensuring performance

Active Publication Date: 2022-04-12
QINGDAO HISENSE HITACHI AIR CONDITIONING SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides an air-conditioning system, which solves the technical problem of the inaccurate refrigerant charging amount of the existing air-conditioning system leading to the performance reduction of the unit

Method used

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Embodiment Construction

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0020] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; either directly or indirectly through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms i...

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Abstract

According to the air conditioning system, the state and the quantity of refrigerants stored in a liquid storage device and the state and the quantity of refrigerants stored in a liquid pipe are controlled through an outdoor electronic expansion valve and an indoor electronic expansion valve which are arranged in front of and behind the liquid storage device, and therefore the quantity of the refrigerants in the system is adjusted; in the refrigeration mode, the outdoor electronic expansion valve is adjusted firstly to meet the requirement that the outdoor heat exchanger outlet supercooling degree is within the target supercooling degree set range, and then the indoor electronic expansion valve is adjusted to meet the requirement that the indoor heat exchanger outlet supercooling degree is within the target supercooling degree set range; and in the heating mode, the indoor electronic expansion valve is firstly adjusted to meet the requirement that the outlet supercooling degree of the indoor heat exchanger is within the target supercooling degree set range, and then the outdoor electronic expansion valve is adjusted to meet the requirement that the exhaust superheat degree of the compressor is within the target exhaust superheat degree set range. The influence of different piping lengths on the refrigerant amount of the system can be solved, and the performance of the unit is guaranteed.

Description

technical field [0001] The invention relates to the technical field of air temperature adjustment, in particular to an air conditioning system capable of adapting to various lengths of connecting pipes. Background technique [0002] The existing air conditioning system generally includes an indoor unit and an outdoor unit, and the indoor unit and the outdoor unit are connected through pipelines. Due to different installation environments, the length of the connecting pipeline between the indoor unit and the outdoor unit is different. Therefore, in order to achieve the best use effect, the amount of refrigerant that needs to be charged in different pipeline lengths is different. However, when installing outside the factory, there are often situations where there is little or no refrigerant charging. Inaccurate refrigerant charging will lead to performance degradation of the unit. Contents of the invention [0003] The invention provides an air-conditioning system, which so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F1/0068F24F1/32F24F11/64F24F11/65F24F11/84F25B41/34F25B43/00F25B49/02F24F140/20
Inventor 王江南周敏高永坤车闫瑾
Owner QINGDAO HISENSE HITACHI AIR CONDITIONING SYST