Liquid spray system control method, device and air conditioning unit

A control method and a technology of a control device, which are applied in the field of liquid spray system control methods, air conditioning units, and devices, can solve problems such as poor stability of refrigeration systems, and achieve the effects of reducing fluctuations in suction superheat and improving stability

Active Publication Date: 2022-04-01
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is how to reduce the poor stability of the refrigeration system of the air conditioning unit caused by the fluctuation of the suction superheat degree

Method used

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  • Liquid spray system control method, device and air conditioning unit
  • Liquid spray system control method, device and air conditioning unit
  • Liquid spray system control method, device and air conditioning unit

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Embodiment Construction

[0030] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0031] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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Abstract

A liquid spray system control method, device, and air-conditioning unit, wherein the liquid spray system control method includes: acquiring a trigger signal indicating entering the liquid spray mode; acquiring a state signal for representing the state of the liquid spray switch according to the trigger signal; The status signal outputs a control signal for controlling the opening of the electronic expansion valve. In this way, the opening of the electronic expansion valve can be adjusted according to the state of the liquid spray switch in the liquid spray mode, thereby reducing the fluctuation of the suction superheat during the liquid spray process and improving the stability of the refrigeration system of the air conditioning unit.

Description

technical field [0001] The invention relates to the technical field of refrigeration equipment, in particular to a liquid spray system control method, device and air conditioning unit. Background technique [0002] Fixed-frequency screw unit is currently the mainstream type of marine refrigeration equipment. With the improvement of requirements, the refrigeration range of marine screw unit has been expanded to 20% to 100% or even lower. Because the motor of the screw compressor dissipates heat through the refrigerant, the low load means that the amount of refrigerant circulation is small, and the cooling of the motor is insufficient, resulting in a high exhaust superheat. When the cooling water temperature is high, the condensation temperature is high, and the final result is the exhaust temperature. stay high. The marine air conditioner is mainly to provide cooling capacity for the personnel and equipment on board. Although the frequent protection of the unit is a kind of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B49/02
CPCF25B49/02F25B2600/2513
Inventor 樊启迪杨二玲
Owner GREE ELECTRIC APPLIANCES INC
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