Heat recovery air-cooled heat pump cold and hot water machine and oil return control method thereof

A technology of air-cooled heat pumps and hot and cold water machines, applied in heat recovery systems, machine operation methods, refrigerators, etc., can solve problems such as overheating and demagnetization, lack of oil in the system, and compressor wear, so as to ensure lubrication and safety The effect of reliable operation, accurate and efficient control

Active Publication Date: 2015-09-16
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The full heat recovery air-cooled heat pump cold (hot) water machine includes four main operating modes, namely cooling mode, heating mode, heat recovery mode, and heat pump hot water mode, which can ensure that air conditioning and hot water can be satisfied throughout the year. Requirements for both domestic hot water and centralization of functions will lead to relatively complex control logic
[0003] Since the full heat recovery air-cooled heat pump c

Method used

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  • Heat recovery air-cooled heat pump cold and hot water machine and oil return control method thereof
  • Heat recovery air-cooled heat pump cold and hot water machine and oil return control method thereof
  • Heat recovery air-cooled heat pump cold and hot water machine and oil return control method thereof

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[0031] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention, but should not be construed as limiting the present invention.

[0032] The following describes the oil return control method of the heat recovery air-cooled heat pump cold and hot water machine and the heat recovery air-cooled heat pump cold and hot water machine according to the embodiments of the present invention with reference to the accompanying drawings.

[0033] figure 1 It is a schematic diagram of a host system of a heat recovery air-cooled heat pump cold and hot water machine according to an embodiment of the present invention. Such as figure 1 As shown...

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Abstract

The invention provides an oil return control method of a heat recovery air-cooled heat pump cold and hot water machine. The heat recovery air-cooled heat pump cold and hot water machine comprises a hot water side heat exchanger, an air side heat exchanger, an air conditioner side heat exchanger and a compressor. The oil return control method includes the following steps that whether the heat recovery air-cooled heat pump cold and hot water machine meets the oil return condition or not is judged; if it is judged that the heat recovery air-cooled heat pump cold and hot water machine meets the oil return condition, the current operating mode of the heat recovery air-cooled heat pump cold and hot water machine is acquired; the heat recovery air-cooled heat pump cold and hot water machine is controlled to execute oil return actions according to the current operating mode of the heat recovery air-cooled heat pump cold and hot water machine. The oil return control method can accurately and efficiently control refrigerant oil in a unit, it is guaranteed that the compressor is always in a safe lubricating state, and it is guaranteed that the unit is safely and reliably operated. The invention further discloses the heat recovery air-cooled heat pump cold and hot water machine.

Description

technical field [0001] The invention relates to the technical field of heat pump water heaters, in particular to an oil return control method of a heat recovery air-cooled heat pump water heater and a heat recovery air-cooled heat pump water heater. Background technique [0002] With the improvement of people's living standards, the heat recovery module unit has gradually become the first choice of the customer's air conditioning module unit because of its energy saving, environmental protection, comfort and other characteristics. The full heat recovery air-cooled heat pump cold (hot) water machine includes four main operating modes, namely cooling mode, heating mode, heat recovery mode, and heat pump hot water mode, which can ensure that air conditioning and hot water can be satisfied throughout the year. The centralization of functions will lead to relatively complex control logic for the two aspects of domestic hot water. [0003] Since the full heat recovery air-cooled ...

Claims

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Application Information

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IPC IPC(8): F25B49/02F25B13/00F25B29/00
CPCY02B30/52F25B49/022F25B13/00F25B29/00F25B31/004F25B2313/02742F25B2600/02
Inventor 武斌李钱生
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD
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