Detection method for throttle valve body of indoor unit of air conditioning system
A technology of throttle body and air conditioning system, applied in heating and ventilation control system, heating and ventilation safety system, control input involving air characteristics, etc. , to ensure system reliability and reduce unnecessary energy consumption
Active Publication Date: 2017-02-22
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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Problems solved by technology
[0002] During the actual operation of the air conditioning system, some internal unit valves may be in a normally open state. If it cannot be detected, it may cause a large amount of liquid return to affect the system effect, or even cause system damage.
The existing general strategy is to carry out system automatic detection during installation and commissioning to ensure that all internal machine valve bodies in the system are normal, but this method is not suitable for systems that have been put into use
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[0010] Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0011] Refer below figure 1 Describe in detail the detection method of the throttle body of the indoor unit of the air-conditioning system according to the embodiment of the present invention, wherein the air-conditioning system includes a plurality of indoor units, and each indoor unit includes an indoor heat exchanger, a throttle body and an indoor fan. The system also includes an outdoor unit. The outdoor unit is connected to multiple indoor units through the piping of the indoor and outdoor units. A refrigerant circulation path can be formed between the outdoor unit and each indoor unit. The outdoor unit includes a compressor, an outdoor heat exchanger, and a...
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The invention discloses a detection method for a throttle valve body of an indoor unit of an air conditioning system. The detection method comprises the following steps: switching the air conditioning system into a refrigeration mode; detecting an inlet temperature TA1 of an indoor heat exchanger of the unstarted indoor unit and an inlet temperature TA2 of the indoor heat exchanger of the started indoor unit, wherein when TA1 is larger than summation of TA2 and B, the throttle valve body of the unstarted indoor unit is proved to be normal; and when TA1 is smaller than or equal to summation of TA2 and B, starting an indoor fan of the unstarted indoor unit and detecting whether the increment value of the outlet temperature TB of the indoor heat exchanger is larger than a preset temperature C or not, wherein when the increment value of the outlet temperature TB is larger than the preset temperature C, the throttle valve body of the unstarted indoor unit is proved to be abnormal, and when the increment value of the outlet temperature TB is smaller than or equal to the preset temperature C, the throttle valve body of the unstarted indoor unit is proved to be normal. The detection method disclosed by the invention can be used for detecting whether the throttle valve body of the indoor unit of the in-service air conditioning system can be normally closed or not.
Description
technical field [0001] The invention relates to the refrigeration field, in particular to a method for detecting a throttle body of an indoor unit of an air-conditioning system. Background technique [0002] During the actual operation of the air conditioning system, some internal unit valves may be in a normally open state. If it cannot be detected, it may cause a large amount of liquid return to affect the system effect, or even cause system damage. The existing general strategy is to carry out system automatic detection during installation and commissioning to ensure that all internal machine valve bodies in the system are normal, but this method is not suitable for systems that have been put into use. Contents of the invention [0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. Therefore, the present invention proposes a detection method for the throttle body of the indoor unit of the air conditio...
Claims
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IPC IPC(8): F24F11/00
CPCF24F11/30F24F11/52F24F11/62F24F11/64F24F2110/00F24F2140/20
Inventor 钱小龙许永锋熊美兵李波舒文涛万永强陈汝锋尚建武彭荣博
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD