Multi-split long connecting pipe output self-adaption method, device and system
An adaptive, multi-connected technology, applied in heating and ventilation control systems, heating and ventilation safety systems, applications, etc., can solve the problems of insufficient compressor output, poor cooling effect, low comfort, etc., to ensure reliability, The effect of enhancing the output
Active Publication Date: 2021-12-24
NINGBO AUX ELECTRIC +1
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Problems solved by technology
When the connecting pipe is long or the pressure loss of the pipeline is large, the actual low pressure is easy to reach the target low pressure range. At this time, the output of the compressor is not enough, resulting in poor cooling effect, but the unit does not increase the output, and the user is not comfortable during use. high
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[0042] In order to make the technical means, objectives and effects of the present invention easy to understand, the embodiments of the present invention will be described in detail below in conjunction with specific diagrams.
[0043] Such as figure 1 As shown, the present invention discloses a method for self-adapting the output of multi-connected long-connected pipes, which includes the following steps:
[0044] S1: multi-line cooling operation;
[0045] S2: Detect and obtain the pipe temperature information of the internal unit, and judge whether the actual output effect of the internal unit is poor;
[0046] S3: If the actual output effect of the indoor unit is poor, judge whether the pressure loss from the indoor unit to the outdoor unit has dropped significantly; if so, go to S4; if not, go to S5;
[0047] S4: adjust the target low pressure temperature, lower the target low pressure temperature range for control;
[0048] S5: Maintain the current control and continue...
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The invention provides a multi-split long connecting pipe output self-adaption method, device and system. The multi-split long connecting pipe output self-adaption method comprises the following steps: S1, carrying out multi-split refrigeration operation; S2, detecting and acquiring pipe temperature information of an indoor unit, and judging whether the actual output effect of the indoor unit is poor or not; S3, if the actual output effect of the indoor unit is poor, judging whether the pressure loss from the indoor unit to an outdoor unit is greatly reduced or not, if the pressure loss from the indoor unit to the outdoor unit is greatly reduced, entering step S4, and if the pressure loss from the indoor unit to the outdoor unit is not greatly reduced, entering step S5; S4, adjusting the target low-pressure temperature, and reducing a target low-pressure interval for control; and S5, maintaining current control for continuous operation. By the multi-split long connecting pipe output self-adaption method, according to the pressure loss and the output effect of the indoor unit, the target low-pressure temperature is adjusted, output of the outdoor unit is increased, the self-adaption capacity is high during multi-split long connecting pipe output, the refrigeration effect can be guaranteed, and the using comfort of a user is improved.
Description
technical field [0001] The invention relates to the technical field of air conditioning, in particular to an output self-adaptive method, device and system for multi-connected long-connected pipes. Background technique [0002] Multi-split units are used more and more frequently in people's life and work. This kind of equipment is that one unit drives multiple indoor units to run through connecting pipes. A large amount of energy loss will be generated during the transportation to the indoor unit through the pipes, resulting in poor operation of the indoor unit. [0003] At present, in the refrigeration mode, the multi-line output is based on the target low pressure, and the target low pressure is divided into different intervals according to the outer ring temperature. When the actual low pressure is higher than the target low pressure, the compressor will increase the frequency and increase the output. When the actual low pressure is lower than the target low pressure, the...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F24F11/30F24F11/61F24F11/64F24F11/86F24F11/88F24F110/10
CPCF24F11/30F24F11/61F24F11/64F24F11/86F24F11/88F24F2110/10Y02B30/70
Inventor 张坤坤
Owner NINGBO AUX ELECTRIC