A control method and system capable of rapidly balancing system pressure

A technology for balancing systems and control methods, which is applied in the direction of refrigerators, refrigeration components, refrigeration and liquefaction, etc. It can solve problems such as high high pressure, system failure to restart, and slow decompression, so as to quickly balance high and low pressures and ensure normal operation. The effect of reopening

Active Publication Date: 2017-04-12
GUANGDONG PHNIX ECO ENERGY SOLUTION
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, with such a four-way valve control logic, when the system is shut down at constant temperature, it often leads to high high pressure and slow decompression, so that the system cannot be restarted

Method used

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  • A control method and system capable of rapidly balancing system pressure
  • A control method and system capable of rapidly balancing system pressure
  • A control method and system capable of rapidly balancing system pressure

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Experimental program
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Embodiment Construction

[0038] refer to figure 1 , the present invention a kind of control method that can quickly balance system pressure, comprises the following steps:

[0039] Read the current state mode of the four-way valve and the upcoming system state mode;

[0040] Judging whether the current state mode of the four-way valve is consistent with the system state mode, if so, execute the first operation mode; otherwise, execute the second operation mode.

[0041] As a further improvement of the control method that can quickly balance the system pressure, the first operation mode specifically includes:

[0042] If the power is turned on for the first time, keep the four-way valve open, and when the first preset time is reached before the first compressor is turned on, the four-way valve will be closed, and then the four-way valve will be turned on when the first compressor is turned on. open;

[0043] If it is a fault shutdown or shutdown, turn off all compressors and turn off the four-way va...

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PUM

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Abstract

The invention discloses a control method and system capable of rapidly balancing system pressure. The method comprises the steps: reading a present state mode and a to-be-carried system state mode of a four-way valve; judging whether the present state mode and the system state mode are consistent; if yes, performing a first operating mode; otherwise, performing a second operating mode. The system comprises a reading module and an execution module. According to the present state mode and the system state mode of the four-way valve, the corresponding mode is carried out; according to actual situations, a purpose of rapidly balancing high-low pressure of a hot pump system can be realized and normal restarting of the system can be effectively guaranteed. The control method and system can be widely applied to the hot pump control field.

Description

technical field [0001] The invention relates to the field of heat pump control, in particular to a control method and system capable of rapidly balancing system pressure. Background technique [0002] In the past, the four-way valve control logic of the heating and cooling heat pump system was as follows: when the system is in the state of the four-way valve being powered on for heating and power off for cooling, the four-way valve is turned on when the compressor is turned on during heating, and the four-way valve is turned on when the compressor is turned off during cooling. The one-way valve is closed; when the system is in the state of four-way valve heating power failure and cooling power supply, the four-way valve is opened when the compressor is turned on during cooling, and the four-way valve is closed when the compressor is turned off during heating. [0003] However, with such a four-way valve control logic, when the system is shut down at constant temperature, it ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B49/02
CPCF25B49/02F25B2600/25
Inventor 吴洁云高翔刘远辉
Owner GUANGDONG PHNIX ECO ENERGY SOLUTION
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