Refrigerant leakage detection method for air conditioning system

An air-conditioning system and leak detection technology, which is used in fluid tightness testing, machine/structural component testing, and measuring devices, etc., can solve problems such as high cost and complicated methods for refrigerant leakage, and achieve simple and reliable detection methods. The effect of improving operational reliability and accurate measurement values

Inactive Publication Date: 2015-06-03
MIDEA GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Existing methods for detecting refrige

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  • Refrigerant leakage detection method for air conditioning system
  • Refrigerant leakage detection method for air conditioning system
  • Refrigerant leakage detection method for air conditioning system

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Embodiment Construction

[0032] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0033] 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; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two elements or the interaction relationship between two elements. Those of ordinary skill in the art ca...

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Abstract

The invention discloses a refrigerant leakage detection method for an air conditioning system. The refrigerant leakage detection method comprises the following steps: S10, starting up a control system, running for first preset time t1, detecting and calculating or presetting the average value T10a of a heat exchange tube temperature; S20, judging whether the running mode of the air conditioning system is a refrigeration mode, a dehumidification mode or a heating mode, and controlling the air conditioning system to continue the following steps if a judgment result is positive; S30, controlling the air conditioning system to run for third preset time t3, detecting and calculating the average value T2a of an indoor temperature, detecting and calculating the average value T11a of the heat exchange tube temperature, comparing |T2a-T11a| with a preset temperature difference Tc, comparing |T10a-T11a| with a heat exchange tube temperature preset change value deltaT1, and making a fault alarm or controlling a compressor to stop through the control system when |T2a-T11a| is smaller than Tc, and |T10a-T11a| is smaller than deltaT1. The refrigerant leakage detection method for the air conditioning system in the embodiment of the invention is simple, and is easy to implement. The running reliability of the system can be enhanced.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to a method for detecting refrigerant leakage of an air-conditioning system. Background technique [0002] The condenser, evaporator, and pipes of the air conditioner air-conditioning system are connected by welding, and the indoor unit, outdoor unit, and connecting pipes are connected by threads, so there are micro-leakages in the system and loose threaded connections that make refrigeration If there are problems such as agent leakage, the air conditioner will not cool or heat or the compressor will burn out, which will affect the use of users. [0003] Whether the refrigerant leaks is detected in time during the use of the air conditioner, which can improve the reliability of the air conditioner. The existing method for detecting whether refrigerant leaks is complicated and costly. Contents of the invention [0004] The present invention aims to solve at least one of the...

Claims

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Application Information

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IPC IPC(8): G01M3/00
Inventor 马闯李金波叶晓龙谢李高
Owner MIDEA GRP CO LTD
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