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Total heat recovery defrosting control method, control system and air conditioning device

A technology of total heat recovery and control method, which is applied in heating and ventilation control systems, energy recovery systems for ventilation and heating, and heating systems, etc. Frosting and other problems can be avoided to avoid a large amount of heat loss, reduce the impact, and ensure the heating demand or hot water demand.

Active Publication Date: 2021-11-02
QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the problem that the outdoor heat exchanger of the air-conditioning device with full heat recovery function is prone to frosting during cooling or hot water heating in winter, and the defrosting operation will consume the heat exchanged by the system and reduce the user experience, the present invention designs and provides a A Total Heat Recovery Defrost Control Method

Method used

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  • Total heat recovery defrosting control method, control system and air conditioning device
  • Total heat recovery defrosting control method, control system and air conditioning device
  • Total heat recovery defrosting control method, control system and air conditioning device

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Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] The terms "first", "second", "third" and the like in the description and claims of the present invention and the drawings are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are meant to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally further includes For other steps or units inherent in these processes, methods, products or apparatuses.

[0027] "An embodiment" in the present invention means that a specific feature, structure or charac...

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Abstract

The invention discloses a defrosting control method with full heat recovery, comprising the following steps: operating in heating mode or hot water mode; judging whether the current operating condition meets the defrosting operation condition; if the current operating condition meets the defrosting operation conditions, then compare the heating demand and hot water demand; if the heating demand is higher than the hot water demand, execute the hot water defrost mode; if the hot water demand is higher than the heating demand, execute the heating defrost mode. At the same time, a full heat recovery defrosting control method and an air conditioning device are also disclosed. The present invention compares the heat demand of air conditioner heating and hot water heating by the total heat recovery unit, selects the heat exchanger with small heat demand for defrosting, avoids a large amount of heat loss of the heat exchanger in the operation mode, and thus reduces the use of energy for the user. experience, to ensure the user's heating demand or hot water demand.

Description

technical field [0001] The invention belongs to the technical field of air conditioning equipment, and in particular relates to a total heat recovery defrosting control method, a total heat recovery defrosting control system and an air conditioning device. Background technique [0002] The air-conditioning device with full heat recovery function is an air-conditioning unit that integrates cooling, heating, and domestic hot water. Generally speaking, this air conditioning device includes a compressor, an outdoor air-side fin heat exchanger for heat exchange with air, a water-side heat exchanger, a total heat recovery heat exchanger for recovering heat energy, a four-way valve, and an electronic expansion valve. , a liquid receiver, and multiple solenoid valves, one-way valves and other actuators set in the refrigeration cycle system to adjust the flow and direction of the refrigerant to perform different functions. Since the refrigerant can flow in different directions and e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/42F24F11/64F24F11/65F24F11/70F24F11/88F24F140/20
CPCF24F11/42F24F11/64F24F11/65F24F11/70F24F11/88F24F2140/20F24F12/001F24D3/08F25B47/02F25B49/02
Inventor 冷宇孙辉赵雷李振洪
Owner QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD
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