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Reheating and dehumidifying integrated refrigerating system and control method

A technology for reheating dehumidification and refrigeration systems, applied in refrigeration and liquefaction, heating and ventilation control systems, refrigerators, etc., can solve problems such as changing indoor air supply air volume and affecting user comfort requirements, and achieve the effect of improving comfort.

Pending Publication Date: 2019-10-18
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the reheating, dehumidification and refrigeration system in the prior art has the defect of controlling the reheat while changing the indoor air supply volume, thereby affecting the user's comfort requirements, thereby providing an integrated reheating and dehumidification system. Chemical refrigeration system and control method

Method used

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  • Reheating and dehumidifying integrated refrigerating system and control method
  • Reheating and dehumidifying integrated refrigerating system and control method
  • Reheating and dehumidifying integrated refrigerating system and control method

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Embodiment approach

[0083] ①. When the outdoor unit receives the "dehumidification" signal, it enters the cooling operation. At this time, the fan of the outdoor unit is controlled to be put into operation. When the fan of the outdoor unit runs at the reference speed R0 for 5 minutes, it starts to detect the user's set temperature t2 and the return air temperature t1, if Δt=tactually-t1≥0.04, the fan of the external unit will run at a higher speed; during the operation of the fan of the external unit, the user-set temperature t2 and the return air temperature t1 will be detected every 5 minutes, if Δt =tactual-t≥0.04, then the fan of the external unit will run at a higher speed than the reference speed R0 until Δt=treal-t1﹤0.04, and the fan of the external unit will keep running at the current speed;

[0084] ②. When -0.04≤Δt=t and -t1<0.04, keep the original running state;

[0085] ③. When Δt=t-t<-0.04, check the user-set temperature t2 and the return air temperature t1 every 5 minutes. If Δt=t-...

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Abstract

The invention provides a reheating and dehumidifying integrated refrigerating system and a control method. The refrigerating system comprises a compressor (5), an outdoor heat exchanger (6), an indoorfirst heat exchanger (1) and an indoor second heat exchanger (2). A first throttling device (8) is also connected between the outdoor heat exchanger (6) and the indoor first heat exchanger (1), and afirst outdoor fan (7) is arranged at the outdoor heat exchanger (6), so that the reheating quantity of the outdoor heat exchanger (6) or the indoor second heat exchanger (2) during dehumidification can be controlled by controlling the wind speed of the first outdoor fan (7). The heat release of a refrigerant in the outdoor heat exchanger can be controlled by controlling the wind speed of the first outdoor fan through the reheating and dehumidifying integrated refrigerating system, so that the comfort of a user is not affected as the indoor blowing air quantity is no longer changed by controlling the reheating quantity during indoor dehumidification and the comfort level is increased effectively.

Description

technical field [0001] The invention belongs to the technical field of air conditioning, and in particular relates to a reheating and dehumidification integrated refrigeration system and a control method. Background technique [0002] In summer, the outdoor air humidity is high, and the dehumidification process is often accompanied by a drop in temperature. Air conditioners on the market generally use electric heating to achieve the reheating function, which increases power consumption and causes energy waste; some air conditioners on the market pass The heat of condensation is recovered to achieve reheating, and the wind speed of the internal fan is controlled to control the reheating temperature, which affects the user's comfort requirements. In the prior art, CN201510120040.4 compressor frequency controls the dehumidification capacity, and controls the reheat through the wind speed of the internal fan, and changes the air supply volume while controlling the reheat, which ...

Claims

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Application Information

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IPC IPC(8): F25B13/00F25B41/04F25B41/06F25B49/02F24F3/14F24F11/64F24F11/65F24F11/84F24F11/86F24F11/77F25B41/20F25B41/34F25B41/37
CPCF25B13/00F25B49/02F24F3/14F24F11/64F24F11/65F24F11/84F24F11/86F24F11/77F25B41/30F25B41/20Y02B30/70
Inventor 孙妍邓李娇李欣叶强蔚
Owner GREE ELECTRIC APPLIANCES INC
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