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Air conditioner, its control method, and control device

A control method and a technology of a control device, which are applied to the control input related to air characteristics, space heating and ventilation control input, refrigerators, etc., can solve the problem of low pressure, liquid entrainment, affecting compressor reliability and Service life and other issues

Active Publication Date: 2017-10-31
CHONGQING MIDEA GENERAL REFRIGERATING EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The current problem is: although the electronic expansion valve has the characteristics of fast response and action speed and precise adjustment, but the single superheat adjustment is prone to problems such as low pressure and liquid, which will affect the reliability and service life of the compressor.

Method used

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  • Air conditioner, its control method, and control device
  • Air conditioner, its control method, and control device
  • Air conditioner, its control method, and control device

Examples

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Embodiment Construction

[0039] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. 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.

[0040] An air conditioner control method, a control device, and an air conditioner having the control device according to embodiments of the present invention will be described below with reference to the accompanying drawings.

[0041] figure 1 is a flowchart of an air conditioner control method according to an embodiment of the present invention. Such as figure 1 As shown, the control method of the air conditioner may include:

[0042] S101, after the compressor of the air conditioner enters the running state, detect the dis...

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PUM

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Abstract

The invention discloses an air conditioner, and a control method and a control device thereof. The method comprises: after a compressor of the air conditioner enters an operating state, detecting discharge temperature Tp of the compressor, evaporation temperature Te, condensing temperature Tc, and load Q of the compressor in real time; according to the discharge temperature Tp and the condensing temperature Tc of the compressor, obtaining current discharge superheat Tdisc of the compressor, and according to the evaporation temperature Te, the condensing temperature Tc, the load Q, and a preset discharge superheat formula, obtaining current optimal discharge superheat Topt of the compressor; and obtaining the difference [delta]T=Tdisc-Topt between the current discharge superheat Tdisc and the current optimal discharge superheat Topt, and according to the difference [delta]T to control opening of the electronic expansion valve of the air conditioner. The method prevents a dry pipe of a flooded evaporator, and improves heat exchange effect of the evaporator. On the premise of ensuring reliable operation of a unit, the method makes the unit in a most efficient operating state.

Description

technical field [0001] The present invention relates to the technical field of air conditioners, in particular to an air conditioner control method, a control device and an air conditioner with the control device. Background technique [0002] In the current air conditioner system, the electronic expansion valve, as one of the four major components of the chiller, plays a vital role in the reliability and energy saving of the chiller. At present, the electronic expansion valve commonly used in flooded or falling film units The adjustment method is exhaust superheat control. [0003] In the related art, the exhaust superheat control system is composed of an electronic expansion valve, a pressure sensor, a temperature sensor and a controller. When the exhaust superheat control system is in working condition, the pressure sensor transmits the condenser inlet pressure P1 and the temperature sensor transmits the compressor exhaust superheat to the controller, and the controller ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B1/00F25B49/02
CPCF24F11/30F24F11/83F24F11/84F24F2110/00F25B49/02F25B2600/2513
Inventor 陈改芳周彤华谷彦涛李峰
Owner CHONGQING MIDEA GENERAL REFRIGERATING EQUIP
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