Compressor performance detection device, air-conditioning system provided with same and control method

Abstract

The invention relates to a compressor performance detection device. The device comprises a compressor (1), an outdoor heat exchanger (2) and an indoor heat exchanger (3), and the device further comprises a vent-pipe temperature sensing package (4), an outdoor environment temperature sensing package (5), indoor environment temperature sensing packages (6), a first detection device and a second detecting device, wherein the vent-pipe temperature sensing package (4) is arranged at the outlet of the compressor, the outdoor environment temperature sensing package (5) is used for detecting the outdoor environment temperature, the indoor environment temperature sensing packages (6) are used for detecting indoor environment temperature, the first detection device is used for detecting the low pressure saturation temperature Te of an air-conditioning system and the second detection device is used for detecting the high pressure saturation temperature Td of the air-conditioning system. According to the compressor performance detection device, whether an admission port of the compressor is in filth-blockage condition can be judged in time and accurately, thereby whether the compressor runs normally are judged in time and accurately, the compressor performance can be detected accurately, and meanwhile accurate and effective judgment conditions can be provided for conducting corresponding operation in later phase according to the detection result. The invention further relates to the air-conditioning system provided with the device and a control method.

Description

technical field [0001] The invention belongs to the technical field of air conditioning, and in particular relates to a compressor performance detection device, an air conditioning system with the device and a control method. Background technique [0002] In the existing multi-connected air conditioning system, when the compressor suction port is dirty and blocked, it is rare to judge the specific fault in time and give a timely pre-alarm and / or remind the customer. Generally, it is only discovered after the compressor has been damaged, or It is simply to detect the discharge temperature of the compressor to judge whether the system is abnormal. However, such a detection method cannot determine whether the refrigerant in the system is reduced or the suction port of the compressor is dirty and blocked. [0003] Since the above-mentioned existing air-conditioning system cannot accurately detect whether the air inlet of the compressor is dirty and blocked, and thus cannot accu...

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Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the situation in the prior art that it is impossible to accurately detect whether the suction port of the compressor is dirty or not, so that it is impossible to accurately detect the defects of the compressor performance, thereby providing a new compressor performance Detection device, air conditioning system with the device and control method

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