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Air source heat pump unit defrosting control method

An air source heat pump and control method technology, which is applied to refrigerators, refrigeration components, mechanical equipment, etc., can solve the problems of poor heating effect and wrong defrosting, and achieve clean defrosting, low energy consumption, and improved heating effect Effect

Active Publication Date: 2020-03-24
青岛奥利凯中央空调有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a defrosting control method for air source heat pump units to solve the problem of poor heating effect caused by wrong defrosting of current air source heat pump units in areas with high humidity

Method used

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  • Air source heat pump unit defrosting control method

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Embodiment Construction

[0035] An outdoor ambient temperature sensor, an outdoor ambient humidity transmitter and a surface cooler fin temperature sensor are installed on the air source heat pump unit. The outdoor ambient temperature sensor is used to detect the outdoor temperature, the outdoor ambient humidity transmitter is used to detect the outdoor humidity, and the surface cooler fin temperature sensor is used to detect the temperature of the upper fin of the surface cooler. The signal of the control unit on the air source heat pump unit is connected to the outdoor ambient temperature sensor, the outdoor ambient humidity transmitter and the fin temperature sensor of the surface cooler.

[0036] Air source heat pump unit in heating mode, such as figure 1 As shown, this embodiment provides a defrosting control method for an air source heat pump unit, including the following steps:

[0037] Step 1: The outdoor environment temperature sensor detects the outdoor temperature, the outdoor environment ...

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Abstract

The invention proposes a defrosting control method for an air source heat pump unit. The air source heat pump unit is provided with an outdoor environment temperature sensor, an outdoor environment humidity transmitter and a surface cooler fin temperature sensor, and the control unit of the air source heat pump unit is connected to the outdoor environment temperature sensor. Sensor, outdoor ambient humidity transmitter and surface cooler fin temperature sensor comprise the following steps: Step 1, calculate dew point temperature by outdoor temperature, outdoor humidity; Step 2, enter first defrosting; Step 3, enter automatic defrosting; Step 4. Exit defrosting. Beneficial effects of the present invention: in areas with high humidity, the air source heat pump unit can be accurately controlled to enter and exit defrosting, avoiding the accumulation of frost on the surface cooler, and the defrosting is clean and thorough; when the temperature is low, it can accurately judge whether it is necessary Control the air source heat pump unit to enter defrosting, avoid frequent defrosting of the unit, realize intelligent judgment and automatic adjustment of defrosting time and interval, improve the heating effect of air source heat pump unit, and lower energy consumption.

Description

technical field [0001] The invention relates to the technical field of air source heat pump units, in particular to a defrosting control method for air source heat pump units. Background technique [0002] The current air source heat pump unit judges whether the air source heat pump unit enters defrosting according to the outdoor ambient temperature, fin temperature and defrosting interval. The defrosting process does not heat. At this time, if the exhaust gas temperature is low and the weather is too cold, the defrosting will often operate, which will make the indoor heating effect worse. [0003] The current air source heat pump unit has worse heating effect in areas with high humidity. In areas with high humidity, after the air source heat pump unit runs for several defrosting cycles, when the ambient temperature is close to 2°C, the defrosting interval is related to the ambient temperature. If the ambient temperature is high, the defrosting interval will be longer, resu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B47/02F25B41/00F25B49/02F25B41/40
CPCF25B47/02F25B49/02F25B2700/21F25B2347/02F25B41/40
Inventor 陈蕊刘中义时文良李文帅
Owner 青岛奥利凯中央空调有限公司
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