Limited measuring point based air conditioning system performance online detection method

A technology of an air conditioning system and a detection method, which is applied to heating and ventilation control systems, heating and ventilation safety systems, heating methods, etc. Effect

Inactive Publication Date: 2017-06-20
SHANGHAI KELING ENERGY TECH
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  • Application Information

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Problems solved by technology

[0003] The present invention aims at the defect that the existing technology cannot measure the relevant performance parameters such as the refrigerant flow rate through the temperature and pressure measuring points at the inlet and outlet of the compressor, so the performance parameters of the system cannot be accurately obtained, and proposes an air-conditioning system performance

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  • Limited measuring point based air conditioning system performance online detection method
  • Limited measuring point based air conditioning system performance online detection method
  • Limited measuring point based air conditioning system performance online detection method

Examples

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Example Embodiment

[0032] Such as figure 1 As shown, this embodiment includes the following steps:

[0033] Step 1. Arrange measuring points in the running air conditioning system, and record the measuring point parameters in real time.

[0034] Such as figure 2 As shown, the arrangement of measuring points refers to the arrangement of compressor discharge temperature measuring points and compressor discharge pressure measuring points between the compressor and condenser of the air conditioning system, and the compressor discharge temperature parameter T 0 And the exhaust pressure parameter p 0 ; Arrange the temperature measurement point of the liquid pipe at the outlet of the condenser liquid pipe to obtain the liquid pipe temperature parameter T 2 ; Arrange the compressor suction temperature measuring point and compressor suction pressure measuring point between the evaporator and the compressor, and obtain the suction temperature parameter T of the compressor respectively 1 And the suction pressur...

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Abstract

The invention discloses a limited measuring point based air conditioning system performance online detection method. Measuring points are arranged in an operating air conditioning system to record measuring point parameters in real time, and the refrigerant flow of the air conditioning system is obtained through compressor flow fitting calculation; and heat exchange amount calculation of a condenser and an evaporator is carried out in combination with a refrigerating cycle theory, the actual refrigerating capacity, the compressor actual power and the real-time EER (energy efficiency ratio) of the air conditioning system are obtained, the air volumes and pressure drop of an indoor unit and an outdoor unit are obtained through calculation based on a fan performance curve and a fan resistance-heat exchanger characteristic equation, and online detection on the performance of the air conditioning system is achieved. According to the method, design is reasonable, work is reliable, and the operating air conditioning system can be monitored online in real time without demounting instruments.

Description

technical field [0001] The invention relates to a technology in the field of refrigeration systems, in particular to an online performance detection method of an air conditioning system based on limited measurement points. Background technique [0002] The increasing popularity of the concept of smart home has gradually become the development trend of future home. Smart home needs to monitor the energy efficiency and other performance parameters of the air conditioner in real time, including refrigerant flow, cooling capacity, energy efficiency and other parameters, so as to feed back the operating status of the air conditioner to the controller in real time. Therefore, the real-time performance prediction of the air conditioner needs to be satisfied: performance monitoring requires real-time monitoring under the running state of the air conditioner. Contents of the invention [0003] The present invention aims at the defect that the existing technology cannot measure the...

Claims

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Application Information

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IPC IPC(8): F24F11/00F25B49/02
CPCF24F11/62F24F11/30F24F11/70F25B49/022
Inventor 任滔丁国良王康硕吴国明
Owner SHANGHAI KELING ENERGY TECH
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