Evaporative cooling air source heat pump device

Abstract

The present invention provides an evaporative cooling air source heat pump device. The working principle of its summer refrigeration is: the low-temperature refrigeration compressor unit does not work, and the high-temperature refrigeration system composed of medium and high-temperature refrigeration compressors is controlled by the electrical control system set in the device. The valve automatically switches to cooling mode operation. The working principle of its winter heating is: when the ambient temperature is high and the humidity is low, the low-temperature refrigeration compressor unit does not work, and the high-temperature refrigeration system composed of medium-high temperature refrigeration compressors works, and the electrical control system set by the device controls the relevant valves automatically. Switch to winter heating mode operation; when the ambient temperature is low or the humidity is high, the medium-high temperature refrigeration compressor unit does not work, and the low-temperature refrigeration system composed of low-temperature refrigeration compressors works, and the relevant valves are controlled through the electrical control system set by the device Automatically switch to make it work, and continuously collect heat from the ambient atmosphere to meet the heating needs in cold and high humidity conditions.

Description

technical field [0001] The present invention relates to refrigeration and heating technology converted by a refrigeration system, and in particular to an evaporative cooling air source heat pump device, which can save energy by at least 40% compared with an air source heat pump device when providing cooling capacity for an air-conditioned place in summer In winter, it can obtain sufficient heat from the ambient atmosphere for people to heat in winter at an ambient temperature of -35°C to 17°C. Background technique [0002] The air source heat pump unit has been widely used in various air-conditioning places due to its simple installation and high performance coefficient as a clean energy source for winter heating. However, due to the influence of summer ambient temperature, solar radiation heat and condensation heat transfer Influenced by the mode, the condensation temperature of the air source heat pump unit is at least 50°C during cooling operation in summer, the coefficie...

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Problems solved by technology

[0004] When the traditional air source heat pump unit is in heating operation in winter, due to the limitation of the extreme working conditions of the compressor, the long defrosting time after frosting, and the difficulty in falling off the frost layer, this kind of air source heat pump unit is not only used in It cannot be used in the cold northern regions. Even in the Yangtze River Basin, where the ambient temperature is around -10°C in winter and the humidity is high, the cooling system is maintained by supplementing air to increase enthalpy. The heat supply is obviously insufficient, and the failure rate of the compressor is very high.

[0005] It is precisely because of design defects that the application range of traditional air source heat pump units is narrowed during winter heating operation, and cannot be used in the cold regions of northern my country, and even the Yangtze River Basin cannot use air source as a clean energy source to meet people's winter heating needs. Therefore, if it is possible to extract sufficient heat from the air source in cold regions and make the device run stably, safely and stably, it can completely replace traditional heating methods with low energy efficiency such as coal, natural gas, and electric heating. It is of great significance to deal with the increasingly serious haze environment

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